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Reddit reviews: The best household ventilation fans

We found 631 Reddit comments discussing the best household ventilation fans. We ran sentiment analysis on each of these comments to determine how redditors feel about different products. We found 172 products and ranked them based on the amount of positive reactions they received. Here are the top 20.

Top Reddit comments about Household Ventilation Fans:

u/ColoradoBadger · 6 pointsr/microgrowery


Cost Analysis

Tent Setup

$70 2' x 4' x 5' Mylar tent

  • Holding up well, easy build. Is not 100% dark, light leaks outwards from spots along the zipper and pinholes but no light leak into the tent during dark. Perfect size for my light.


    $325 Lights: Horticulture Lighting Group 260 QB LED Kit

  • I cannot say enough about these lights. I had to run them anywhere from 50-75% during veg to prevent light burn. Great coverage for a 2x4 tent. Nothing but praise 10/10 would buy again.


    Climate Control

    $100 ($90 + $10)4" Inline duct fan and Carbon Filter + Ducting/clamps from ACE

  • This puppy can SUCK, I have to keep it on the lowest setting to prevent the pressure inside the tent from dropping (need to work on my passive intake next grow). Carbon filter works great. Lowers humidity in a pinch. It keeps my humidity at or below 50%, which is what it maxes out at after a watering.


    $21 Osculating Fan Purchased on a flash deal

  • I have it elevated about 3-4 inches on a box. Running and osculating 24/7. It pushes air, not a jet engine though.

    Already on hand: Box Fan

  • Had one from years ago. Sometimes I open the tent and blast this on high right on level with the buds just go shake out the leaves, gets a bit crowded in the scrog and I'd like to eliminate any humidity caught between leaves sticking together. Think you can scoop one from Walmart for like $15 bucks, $20 max. I also have room at the right edge of my tent where I normally keep the oscilating fan to drop this in and use it in a humidity pinch.

    $25 [Humidifier] (https://www.walmart.com/ip/Sunbeam-Warm-Mist-Humidifier-SWM6000-BWM/32664862)

  • This puppy does well. I use the first setting, usually can run 16+ hours on a full reservoir of H20. No filter which keeps cost down, just need to clean it one or twice a week with a brush for the hard water deposits. 5-10 minute process.

    $45 Dehumidifier

  • This was a bit of a mistake purchase. I wanted to test and see if a small model offered on amazon (this looked to be one of the best for sub $50, and has the biggest holding tank out of them all) could put in any kind of noticeable work in a tent. What I noticed is that it will be able to roughly maintain humidity at times, after I run the exhaust fan to lower the levels. When the lights are out and the temperature drops, this thing has no chance. Go with a full size dehumidifier or rely on the dry Colorado air + passive intake + duct fan. I was struggling with humidity issues during the cold of the winter, now that I can have my windows open my ambient room humidity is usually 40% or below.

    $18 4" inline duct booster fan

  • Also a mistake purchase. Does not move a lot of air. Had plans to use this for an airflow/passive (not) intake system but it's not worth the electricity cost to run this thing. I'd stay away.


    Meters (Ph, PPM, Soil, Temp and Humidity)

    $18 Hygrometer for Temp/Humidity

  • Worth it to get the wireless monitor so you're not opening the tent all the time)

    $13 Ph Meter

  • Great little Meter. Calibrated nicely and seems to be holding true. Details about storage below under the calibration Solution

    $12 TDS PPM meter

  • Quick measurements, came with a little leather storage pouch. Can't recommend against it.

    $9 Soil Moisture, Light, Ph meter

  • Does it's job well, reads soil Ph and moisture well and pretty instantaneously. I wouldn't recommend it for getting detailed light readings but it responds correctly.


    Ph Control and Calibration

    $9 Ph Control Kit

    $14 Ph Calibration solution

  • For calibration/life of the tip:I store the tip in a bit of 7.0 solution that I pour into the cap. Good to have on hand for calibration.



    Plants / Growing Medium

    $80 Clones - $20 from dispensary. here's a link to the strain page and the clone page. Don't believe seeds are available.

    $8 for 6ct 5 gal Smart Pot knockoff

  • Do their job, hold up well. I cut the handles off to make watering under the scrog easier.

    $40 - Soil: Two bags of Happy Frog purchased from the local grow store. Ocean forest was sitting around.

    $7 for 30ct Starter grow bags

  • Do not recommend, breathe terribly, water stagnates even with modifications. Had to feed lightly and often, and really monitor dampness. Needed these for the outdoor garden anyways)

    $14 - Scrog net: I believe it was a 25 or a 50ft roll of 1"x1" plastic garden fencing from Home Depot.

  • Unfortunately I can't find a link but it's pretty common. I cut out the middles to make them 2"x2" openings, 1x1 seems very difficult to work with and would block a lot of light.


    Nutrients

    $100: Cyco 1 Litre Bottles

  • I have a local grow shop that I purchased a lot of these from. The 1 litre Cyco nutrient bottles ranged from $10-$18 and I have 7 different nutrients, call it $100

  • Vegetative State: Grow A & B + Dr. Repair + Silica

  • Flowering State: Bloom A & B + Potash Plus (+ Dr Repair and Silica every other feeding)

    $20: Key To Life - Uptake

  • Great for calcium uptake. Was told that this could basically replace calmag.

    $45 Cyco Grow XL Super Phosphoric Acid

  • Definitely an 'extra', not cheap for 100ml but I think the potential yield improvement from this phosphorous bomb will cover that cost, especially over 3-4 grows which I expect to get out of the bottle. Also states it helps with Fe, N and K uptake.



    Miscelaneous Stuff:

    $15 - random stuff from Walmart, etc.
  • Eyedroppers, duct tape, zip ties

    $6 Spray Bottles

  • Did not use these much, only very early during transplanting



    So to total that all out we're looking just over $1000 that I spent.

  • Could have kept it under $950 if I had not purchased the small duct fan or dehumidifier.
  • Also: Soil and nutrients for $205. Could work that down to under $150 by dropping a couple unnecessary yet desirable nutrients.


u/SARASA05 · 5 pointsr/HomeImprovement

I've owned my first home for 3 years and two years ago I designed and was the general contractor for an incredible master bedroom/bath addition.

Suggestions, my house has a one piece sink/counter and it's wonderful and easy to clean and seamless - love it. Highly recommend. Rectangular sinks are popular right now, don't do it--most sinks are oval for a reason (I have rectangle and I've had to relearn how to use a sink and it's too shallow and I don't like it).

I'd recommend not doing tile in your bath/shower area and getting a single vinyl piece like what you currently have (but not green). The shower inserts are easy to clean, elegant, and you can even buy them with a tile design that looks real but is still super easy to clean. Showers should always have extendable shower head arms to make cleaning easier. I'd get one of those curved shower curtain rods to make the shower feel wider. Add recessed lighting above the shower and a few more recessed lights in the room.

For my bathroom addition, I got this fan: https://www.amazon.com/dp/B003TJAGO4/_encoding=UTF8?coliid=IG66NQLIR3JQR&colid=1BWCRY8EQNMEF and it's very quiet, not too expensive, and works really well - it was a Reddit recommendation in several different threads and I'm glad I got it.

How many bathrooms are in your house? Is this the master bathroom? That would determine some choices for me. Does that set of doors on the right hide a linen closet or is it the washer/dryer? If you're taking the room down to the studs and those doors hide a linen closet or a washer/dryer or something else? Consider how much linen closet space you need. If it's a linen closet and if this is the master bathroom or a 'kid' bathroom, I'd recommend trying to get a double sink in here and making the linen closet smaller. If it's laundry, then obviously keep it as a laundry room.

Good idea on removing all the tile and replacing with floor tile and drwall. I'd omit the cabinet above the sink and get a bathroom mirror that will show more of your reflection (especially make your belt area visible) and have storage behind the bathroom mirror. A mirror like this from Ikea would give you a lot of storage space (http://www.ikea.com/us/en/catalog/products/20205171/) - my bathroom mirror is similar but has mirror on the inside which is a nice feature. I wish I had installed the mirror cabinet flush with the wall instead of popping out a few inches. I had the electrician put an outlet near the bottom of the toilet (I saw in a bunch of magazines) and several near the sinks for shaving and electric toothbrushes. I also have a small linen closet in my bathroom and had the electrician put an outlet in there so I could leave my hair dryer plugged in all the time. It's the little things! Think about how you use your space and what you want out of it.

u/mastrkief · 4 pointsr/EtherMining

Right I guess what I mean is that you have to keep in mind that your gpu Temps show in celsius but you're reading your ambient Temps in Fahrenheit. So 109 is super hot for a human but is nice and cool for a gpu at only 42 degrees celsius.

There have been lots of posts on r/gpumining where people have done similar set ups to yours. To be honest in this situation having a smaller shed would be more beneficial because it'd be easier to expel the hot air which is the number one most important thing. You don't need to cool the air from the outside you just need circulation of air . You need to install one or two giant exhaust fans in the top of your shed and one or two at the bottom as intakes. Here is exactly what I'm talking about

In this guy's setup, his boxes are small enough that his giant ass exhaust fans actually are strong enough to suck air in the sides so he doesn't even need a separate intake fan. I doubt you'd be able to do the same though because of the size of your shed. I guarantee if you just invest in some quality fans. And I don't mean box fans I mean ones like this that will really start getting fresh air in and hot air out you will be fine and won't need the ac units. Especially because those ac units themselves use a lot of juice I imagine they've got to be wrecking your profits.


Just search on YouTube for "gpu mining shed" or "gpu grow tent" and you'll get a lot of good ideas. One YouTuber in particular id check out is Angry Chicken

I know this is a a complete rebuild but you might consider multiple smaller sheds like in the first link. Smaller enclosures allow for better circulation.

Either way, good luck!

u/4twen_t · 3 pointsr/microgrowery

Absolutely! You can get as crazy as you want with it, but there are some basics you need to figure out before you really start.

Where are you growing this plant? Do you have a space you're going to use? A closet, an unused bathroom, the basement? Are you going to be purchasing a tent, or maybe emptying out a dresser like this?

The light choice is one you can spend many (too many) hours on. LEDS have their benefits and drawbacks, as do CMH. Heat is more of an issue with CMH, but LEDs can also pump out serious heat. CMH is easy to know what to buy, no real dialing in the height, no worry you're not getting the right spectrum, etc. I'll probablu go LED at some point, but for now CMH is easier (for me). This is the CMH kit I started with. Ballast, bulb, reflector all included. if you have an option for the light, you'll want to get one that is 3100K and NOT the 4000K. 3100K is not as good for veg, but is great for flower. You can detatch the ballast from the reflector - helps keep temps in the tent down, since you can place the ballast outside.

How are you going to deal with heat? Lights run hot, and you WILL need to manage it at some point. Check my previous posts to see my light tube setup.

How are you going to deal with smell? Smell will be an issue, no ifs ands or buts. You can DIY carbon filters, but only if you trust yourself to do it right and hope it won't fail. You will need a carbon filter and fan to manage the smell. I'm running a 6" inline fan with a CAN33 filter. There is 0 smell from the exhaust, the filter is clutch. If noise is an issue for you, fans are decently loud running at full tilt. To work around this, a speed controller on a larger diameter fan, turned down to a lower speed, will reduce noise significantly while giving you the same airflow as a smaller fan on high.

You'll need to get soil and nutrients. Myself and a lot of growers really like Fox Farm Ocean Forest soil. FF Happy Frog is another good one. Get fabric pots if you can - lets the roots breathe a bit.

The above is very, very basic starting info. An enclosed space to grow; an exhaust fan and odor control; full spectrum light; water and nutrients.

Let me know if you have any other questions!

u/615wonky · 3 pointsr/microgrowery

Start small. It'll save you money, let you get your feet wet, and help you learn how to grow better, and then you can buy bigger.

My "starter package" is:

  • A 2' x 2' x 3' grow tent - $55.
    https://www.amazon.com/gp/product/B00SWGYYWO

  • A grow light ($90). I prefer COB's as they're easier to fix than blurples.
    https://www.amazon.com/gp/product/B01I4NY8KW

  • A power strip zip-tied to a pole in the tent. Makes wiring prettier and easier. ($24) I chose a nice metal one, but you can use a cheaper one.
    https://www.amazon.com/gp/product/B00F8ZQYHA

  • Hangers to hold the light ($8)
    https://www.amazon.com/gp/product/B0098R0600

  • A fan and filter ($70), and variac ($90) to filter smell and move air to keep things cool. This combo is overkill for this tent, but I ended up using it on later tents so it's a good long-term investment. You can cobble something cheaper together with some work, but this "just works" out of the box.
    https://www.amazon.com/gp/product/B004Q2ER5C/
    https://www.amazon.com/gp/product/B006NGI8VS

  • 5 gallon Smart Pot ($7) for growing, FoxFarm Ocean Forest Soil ($16.50), Plant saucer ($7) for growing. You can save some money here by shopping around. In particular, Amazon's price for FFOF is about double what I pay at the (very expensive) local "indoor gardening" center.
    https://www.amazon.com/Smart-Pots-5-Gallon-Soft-Sided-Container/dp/B002JUOWB2
    https://www.amazon.com/FoxFarm-FX14053-12-Quart-Organic-Potting/dp/B001I49Q98
    https://www.lowes.com/pd/Garden-Treasures-15-31-in-Rust-Plastic-Plant-Saucer/50445000

  • Go Box Plant Nutrients. This should last you several grows.
    https://www.amazon.com/gp/product/B004PS4B08

  • Seed of your choice (let's say $10).

    So for about $420 (heh), you can get your foot in the door and start growing. This is a nice setup too, you can probably save $100 by shopping around, buying used, or doing-it-yourself. I've left off a few odds and ends like dryer duct, Fiskers for trimming, weed fabric pins for low-stress training, pitcher for watering, Mason jars for storage, but you can likely find those or suitable replacements around the house without spending money.

    I also have a Raspberry Pi 3 ($43) with Sense Hat ($37) and metal case ($15) in each of my grow tents to log temperature/humidity and other things. I'm interested in eventually using the GPIO functionality to water my plants too. Not critical, but definitely a nice thing to have, especially if you're the hacker type. If you go this route, you might look at raspiviv.com too.
    https://www.amazon.com/gp/product/B01C6FFNY4
    https://www.amazon.com/gp/product/B014HDG74S
    https://www.amazon.com/gp/product/B0722L338Q

    I'm glad I bought a good intro setup because I still use it now that I've upgraded. I now have a 3' x 3' GG Shorty tent with HLG 300 LED for flower, a 2' x 2.5' GG Shorty tent with two 400W Roleadro COB's for veg, and my "intro package" is now my germination/cloning tent (and drying tent too since several people suggested that too). Being able to have three tents (germination -> veg -> flower) working simultaneously is increasing my output quite sharply. I'm doing this to help a relative with cancer, so you may not need to go quite as crazy as I did.

    You mentioned using 35+ gs (~1.25 oz) a month. You probably aren't going to be able to grow that much given the constraints of tent size and light wattage (plus being a first-time grower! You'll learn a lot!). So once you get used to it, you'll probably want to buy more stuff. Marijuana isn't addictive, but growing marijuana absolutely is.

    Once you've got your hardware, the variable cost is seed (~$10), soil (~$5), nutrients (~$20), and electricity (~$30). From that, I'm going to estimate you can grow ~1.5 ozs (you can do more as you learn more though). So you're looking at ~$40/oz after you've made the initial hardware investment.

    Hope this helps. Depression, cancer, and everything else can just go suck it.
u/Robbbbbbbbb · 2 pointsr/EtherMining

First, welcome to the enclosure club! You'll love the cost savings and lack of heat.

Here are a few points I'd like to make:

  1. Install fans at the top of the unit
  2. Ensure you have the proper air flow. Here is a document explaining how to calculate flow in enclosures.
  3. Space out your fans. Unlike the photo you posted, you don't want to necessarily just draw air out of one central point. This can cause hot spots and some cards may not be cooled as well as others.
  4. Leave headroom in the enclosure for hot air to collect. This may not seem important, but my cards get a LOT warmer when moved three feet closer to the top.

    You're looking for inline fans. I personally run Vivosun 440cfm units. I ran only one when I had three rigs in my tent, but after moving my ASICs in, I'm hooking up a second to improve temps a bit more.

    You can use conventional 6" dryer duct to move the air, but make sure you get the proper worm clamps and a Wye splitter (or better yet, two venting outlets for improved flow). The straighter the ducting, the better flow you will get.

    Here is an old video that I uploaded showing when I just had two rigs. This is how it looks now, and creates quite a bit more heat.

    Good luck with your build!
u/firecrackerrock · 10 pointsr/SpaceBuckets

Lights: I have the mars hydro 300 (132 true watts) as my main light on the top, and plan to add a couple strips for side lighting in the near future.

Ventilation: As you may see from the pictures, I have the heat exhaust on the top side. The exhaust is being pulled into a secondary tote. In the secondary tote I have a large carbon filter attached to a 6 inch inline fan with variable speed control. This kit. Definitely overkill but I like the room for expansion.

I plan to start growing in a 3 gallon smart pot knock off, with some ak-48 autoflower seeds.

I have really enjoyed watching this community grow through the years.

Thank you everyone for your wonderful contributions. Guys like /u/Ekrof, SAG, /u/Halfmpty, /u/exactly25smeckles, and the rest have really inspired me to try this for myself.

I would like to add some filtration to my passive intake, any suggestions?

u/blakegrows · 2 pointsr/microgrowery

Two days ago, the Tangilope's leaves went a little limp. Upon inspection of the soil, it appeared to me it was due to the cup starting to fill with roots and quickly sucking the cup dry of most water. I do not believe it is over-watering, but I could be mistaken. Last night, I decided to move it to a 2gal smart pot filled with approx. 3/4 Roots Organics and 1/4 chucky perlite moistened for a very light and airy mix. I then used approx. 6oz of water to water mostly around the root ball (no run-off, I didn't want to drown it). It's still growing, but I'm hoping the leaves will bounce back to their perky selves soon. I plan on letting the soil dry out quite a bit before the next watering. And as soon as it bounces back and grows one more node, the topping and LST will begin.

The Vanilla Kush is getting big quick, and I'm liking how wide the leaves are looking already. I was hoping to get a more Indica pheno to balance the tangilope. I looked at the rootball last night, and I think it could go a bit longer without transplant. I watered it again this morning, so it will be ready for a transplant tomorrow night.

Things are looking pretty good so far, and I'm getting excited now that the plants are starting to move along. I can't wait to train my first couple plants. Topping, tying, and scrogging to come. Thanks for looking

INFO

Plants: (1) Feminized Barney's Farm Vanilla Kush & (1) Feminized DNA Genetics Tangilope.

Tent: 3'x3'x6' Apollo Tent

Light: iPower 600w closed hood running at 50% for seedlings and about 14" away from plant.

Fan: 440CFM exhaust fan

Carbon Scrubber: 6"x16" phresh filter

Soil: 1/3 roots organics & 2/3 pro-mix HP for seedling stage

Nutes: General Organics GO Box

Pots: RR > solo cup > 1 or 2gal smart pot > 5gal smart pot > 7 (maybe)

PH Kit: General Hydro

Seed Starter: Rapid Rooters

u/EnormousGrowth · 3 pointsr/microgrowery

That's a lot of money for a fan. You could always get a cheaper fan that moves more cfm and simply get a fan silencer. You would still save money at that rate and spend the rest on an enclosed hood or cool tube to help with temperature control.

Overall you're good.

Fan Silencer (out of stock at the moment, but cheaper): http://www.amazon.com/VenTech-VT-FS-6-Muffler-Silencer/dp/B00HWILBSS/ref=sr_1_3?ie=UTF8&qid=1450225496&sr=8-3&keywords=fan+silencer

Fan silencer (more expensive, but in stock): http://www.amazon.com/Phresh-701200-Silencer-4-Inch-12-Inch/dp/B007ZU5YQS/ref=sr_1_6?ie=UTF8&qid=1450225496&sr=8-6&keywords=fan+silencer

Hood Upgrade: http://www.amazon.com/Apollo-Horticulture-GLRLS24-Hydroponic-Reflector/dp/B00BMVK8HG/ref=sr_1_1?ie=UTF8&qid=1450225652&sr=8-1&keywords=air+cooled+hood

Fan and Carbon Scrubber Replacements: http://www.amazon.com/VenTech-VT-IF6-CF6-B-Controller/dp/B0051HDECS/ref=sr_1_1?ie=UTF8&qid=1450225799&sr=8-1&keywords=ventech+vt+if6

If you're going to be flowering in the tent, I would recommend lightproofing it, as well. Use only the ports in your tent for intake and cut some carbon filters to size. http://www.amazon.com/Carbon-Pre-Filter-38002-Activated-Sheets/dp/B00LXIWNT4/ref=sr_1_1?ie=UTF8&qid=1450225982&sr=8-1&keywords=carbon+filter+sheet

Your tent is a little expensive, too. If that's the one you have your heart set on, go for it. As an alternative, I suggest http://www.amazon.com/MILLIARD-Reflective-Hydroponic-Mylar-Window/dp/B00ETBDX14/ref=sr_1_1?ie=UTF8&qid=1450226158&sr=8-1&keywords=milliard+grow+tent

You will want a fan or two of some kind to circulate air inside the tent. 6 Inch clip fans are popular. I use a pair of 4 inch clip fans and a tower fan.

Make sure to look into a DIY Ona Bucket for smells. During flower it will stink up your room when you open the tent. Just turn the Ona bucket on a little before that and you're good. If you're really paranoid about smell, you can also get an inline carbon scrubber. They're pretty expensive and probably not necessary unless you pick some especially fragrant strains. http://www.amazon.com/Phresh-500-Inline-Filter-6-Inch/dp/B00CJIMUH2/ref=sr_1_1?ie=UTF8&qid=1450226390&sr=8-1&keywords=phresh+inline

That's my $.02, anyway. There are much more experienced growers here.

u/pleasehelpwaterfloor · 2 pointsr/microgrowery

These are my suggestions - feel free to ask more questions if you need anything!

Read these guides (not by me) - I wish I had had something like this when I started: http://homegrow-pro.com/quantum-board-build-grow-tent/ And this one: http://homegrow-pro.com/the-3x3-grow-tent-setup/

The links and suggestions below are oriented for Canadians, so feel free to ask for alternatives.

Essentials

u/skoomd1 · 2 pointsr/microgrowery

I honestly would use panda film over the mylar stuff. Mylar is slightly more reflective but panda film is cheaper and diffuses light better. It's black on the backside for blacking out. It's also cheaper. Either one will work great tho.

>Now my questions are, do i need some kind of air inlet to let fresh air in, and if so, will a simple vent do, or does it require a fan as well, or is that overkill for what I'm doing?

A vent should be plenty. Make it bigger than your exhaust, like 2x bigger. Intake fans arent needed in such a smll space. Make sure it's a lifeproof vent. Like this

>Also, If I get a 150Watt LED, I think that would meet my needs, but if I added another 50w LED light and pointed it at the undergrowth, would that be a benifit or will the 1 lamp provide all I need? I'm on a budget, but thankfully the budget is large enough that if I can find a good bang for my buck addition that will provide a better harvest, I can do it.

Like /u/Cuicos said, get the quantum board 135w kit. It will be all you need in that space. It equals one of the "600w" blurple LED panels on amazon. Or about 4-5 of those 150w LEDs you're talking about (UFO im assuming).

You wont need any side lighting or anything using the kit.


>I know I'll need an air extractor and carbon air filter, as wel as a small fan inside the room to circulate the air.

Yep. If you want a cheap one, get this. It will be loud as hell though. If you want a quiet one, get this. DO NOT GET A FAN LIKE THIS ONE.


If you are serious about smell, do not get a shitty filter. Ipower, vivosun, etc. are all shitty. I had a brand new 4" ipower filter and it couldnt handle 1 plant. Get a phresh one, this one is perfect.

u/Mitten_Punch · 2 pointsr/microgrowery

You need more than 36" vertical space. Your fan + filter will take up 10", pots another 10", and you will need to keep the light 12"+ away from the plants. This tent is close in footprint, but with a much more manageable height. Tons of good tents out there though. Just make sure you have at least 5' if you are flowering. 6 or 7 is better.

Can't speak to that particular Mars light. If you only have $150US/100GBP to spend, I'd look into more options. Mars300 for a first grow is an idea. A better idea, if you have the time/inclination, is to build a light. You can get diode strips (Bridgelux EB, Samsum Series H, etc) + 100w driver for the same price, and it'll put out more useful light with less heat. If that sounds like something you want to do, search a bit on this subreddit, and post questions. Lots of builders here.

As for fans, Active Air is a solid brand. Just don't buy anything that look like this--which is a duct fan, not an inline or this--which is an inline that will work for 3 months then break.

u/snmnky9490 · 1 pointr/microgrowery

I haven't heard of any making them louder than full, but most don't really make it much quieter than full. This could be something to do with the type of fan used or the controllers.

Here is an example of a way to make a carbon filter. This one is meant to be connected to an inline duct fan, which is probably the type I would recommend for your sized space.

http://www.homedepot.com/p/Suncourt-Inductor-6-in-In-Line-Duct-Fan-DB206/100067594

http://www.amazon.com/VenTech-DF4-Duct-Fan-100/dp/B00F6BL11U/ref=lp_13399911_1_1?s=hi&ie=UTF8&qid=1412050146&sr=1-1

You can find them at any big hardware store to check it out in person before buying too if you don't want to order online

Okay I just looked up the fan you were talking about in your original post and if this is the one, then how were you planning on attaching a carbon filter to it? It looks really flat like a jumbo computer fan and doesn't seem like it would be easy to both mount to your box and attach a filter to. Also, that type of fan generally doesn't have very good suction/air pressure. They can have a decent CFM rating and are useful for circulating air within the box or as exhaust fans without a filter, but once you introduce something that impedes the flow, they don't have enough force to push air through well. I originally thought you were talking about this type of fan

Either way, if you do end up getting a speed controller on any kind of fan, it is important when using it to start the fan up at 100% speed, then lower the speed down to your desired setting, not start it at 0 and turn it up or start it at the final speed.

u/5fingerdiscounts · 20 pointsr/NanoGrowery

Saved this comment from a fella in micro grocery to start my set up

These are suggestions - feel free to ask more questions if you need anything.

Read this guide - I wish I had had something like this when I started: http://homegrow-pro.com/quantum-board-build-grow-tent/ Read this guide too: http://homegrow-pro.com/the-3x3-grow-tent-setup/

Essentials

• ⁠Grow Tent: 3 ft x 3 ft x 6 ft is the size you'd probably want. This is the one I bought: https://www.amazon.ca/VIVOSUN-Hydroponic-Observation-Window-Growing/dp/B01DXYMKIO
• ⁠Light: https://www.alibaba.com/product-detail/Kingbrite-240W-samsung-lm301h-288v3-quantum_62120261175.html?spm=a2700.7803241.0.0.31d73e5fhFxf6a This light is a fantastic LED quantum board that is very easy to assemble - I got the 3000K one with the epistar
• ⁠Fabric Pots: Head to Amazon and grab yourself a 5-pack of 7 gallon fabric pots https://www.amazon.ca/VIVOSUN-Gallons-Thickened-Nonwoven-Handles/dp/B00TF9E9PY/
• ⁠Also get yourself a saucer (you can get this at any garden store) and a pot elevator for each pot (pot elevator example: http://amazon.ca/Gro-Pro-725675-Level-Elevator/dp/B01J37FHF8/)
• ⁠Soil: Get yourself a bail of Pro Mix HP with mycorrhizae (it's cheap, reliable, and hard to overwater) from Canadian Tire, Rona, any store really and get also a bag of earthworm castings. Cover the bottom of your fabric pot with the castings (2-3 inches deep) https://www.homehardware.ca/en/20l-organic-worm-castings/p/5025712
• ⁠Nutrients: Gaia Green Dry Amendments (All Purpose and Power Bloom) Mix the All Purpose in with your Pro-Mix HP and then top dress your "soil" every month, changing it to Power Bloom during flowering https://www.canadiangardensupply.com/gaia-green-all-purpose-4-4-4.html https://www.canadiangardensupply.com/gaia-green-power-bloom-2-8-4-power-bloom-2-8-4-2kg.html
• ⁠Ventilation: Get the AC Infinity Cloudline T4 - it's absolutely worth it. Then purchase a 4-inch carbon filter and 4 inch tubing from Amazon (branding doesn't matter for these two things) https://www.amazon.ca/AC-Infinity-CLOUDLINE-T4-Ventilation/dp/B06ZXWN3BG https://www.amazon.ca/AC-Infinity-Dual-Layer-Aluminium-Ventilation/dp/B071LHCFZ8 https://www.amazon.ca/VIVOSUN-Australia-Charcoal-Pre-filter-Included/dp/B01DXYMBU6
• ⁠Timer: You can go cheap on this, but also consider a smart timer (like a Wemo) https://www.amazon.ca/Insight-Switch-Enabled-Compatible-Amazon/dp/B00EOEDJ9W
• ⁠Seeds: Jahseeds.ca - Canadian breeder, amazing beans, amazing price! Go with feminized seeds for your first round. https://jahseeds.ca/shop?olsPage=t%2Ffeminized-seeds

Extra accessories

• ⁠Pruning shears (seperate ones for trimming live plants and ones for harvesting) https://www.amazon.ca/Pruning-Gardening-Straight-Stainless-Precision/dp/B076HL5JJM
• ⁠a lighter (for sanitizing)
• ⁠a set of tweezers, for planting your sprouted seed
• ⁠some garden gloves
• ⁠rope ratchets for your lights
• ⁠zips ties for protecting things
• ⁠binder clips (for low stress training)
• ⁠plant ties (soft rubber and wire kind)
• ⁠watering can
• ⁠two pairs of measuring spoons for dry amendments
• ⁠a clip on fan and rotating fan (for air circulation over and under the canopy)
• ⁠markers and a pack of tag plant markers for identifying plants
• ⁠soil moisture https://www.amazon.ca/Soil-Moisture-Sensor-Meter-Hydrometer/dp/B014MJ8J2U
• ⁠paper towels (for germination)
• ⁠Bucket Head Wet Dry Vacuum Powerhead Lid for 19 Litre (5 Gal.) Multi-Use Buckets great for gathering up the excess water and tipped soil) https://www.homedepot.ca/product/bucket-head-wet-dry-vacuum-powerhead-lid-for-19-litre-5-gal-multi-use-buckets/1000666690
• ⁠3 five gallon buckets (1 for the buckethead vacuum and 2 for extra water reservoirs) and two lids
• ⁠3 surge protector power bars
• ⁠Various AC power extension cables
• ⁠1 trellis net (for ScrOG training)
• ⁠USB microscrope (used to check the trichomes at harvest - if you want you can also get an adapter so it plugs directly into your smartphone, as opposed to plugging it into a computer) https://www.amazon.ca/Jiusion-Magnification-Endoscope-Microscope-Compatible/dp/B06WD843ZM
• ⁠62% Boveda packs for curing
• ⁠Mason jars for curing and storage
• ⁠hanging rack for drying (you can substitute this for a hanger and some plant ties)
• ⁠Duct tape

It's a little more expensive at the start, but this setup will pay for itself within two harvests. With this setup you can expect to yield between 8 to 12 oz every run, once you grow accustomed to the cycle.

u/Tater72 · 2 pointsr/Michigents

Go buy a 4x4 tent, ideally gorilla but can get cheaper.

https://growershouse.com/gorilla-grow-tent-4-x-4?utm_source=google&utm_medium=cpc&adpos=1o1&scid=scplp6055&sc_intid=6055&gsacid=952890155&keyword=&gclid=Cj0KCQiAw4jvBRCJARIsAHYewPMdnaA3pI_kaqr7hDDtRfQzZ5-nIJ_myYwy_RzlSfPlTYAKJuHyn5MaAotOEALw_wcB#!

Order the light


https://growershouse.com/horticulture-lighting-group-hlg-600w-qb288-v2-r-spec-led-kit?utm_source=google&utm_medium=cpc&adpos=1o2&scid=scplp15744&sc_intid=15744&gsacid=952890155&keyword=&gclid=Cj0KCQiAw4jvBRCJARIsAHYewPMp8yJqTkQMEmC5Db2_3fMT73eIoyEVEXZMPbEIJIB_wpvPAEW537saAsyFEALw_wcB

Inline fan


AC Infinity CLOUDLINE T6, Quiet 6" Inline Duct Fan with Temperature Humidity Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics https://www.amazon.com/dp/B074XBXFPD/ref=cm_sw_r_cp_api_i_LMT4Db95YN9QZ

Carbon filter


VIVOSUN 6 Inch Air Carbon Filter Odor Control with Australia Virgin Charcoal for Inline Fan, Grow Tent Odor Scrubber, Pre-Filter Included, Reversible Flange 6"x 18" https://www.amazon.com/dp/B01731MLFK/ref=cm_sw_r_cp_api_i_HNT4Db23PB3M8

Flex duct

VIVOSUN 6 Inch 25 Feet Non-Insulated Flex Air Aluminum Ducting for HVAC Ventilation w/Two 6 Inch Stainless Steel Clamps https://www.amazon.com/dp/B010UCCMW6/ref=cm_sw_r_cp_api_i_yPT4DbNQFABKE

Fan


SPT Wall Mount 16" Fan with Remote Control https://www.amazon.com/dp/B071Y8CN45/ref=cm_sw_r_cp_api_i_oQT4DbV2ANXJG

Temp/hygrometer

AcuRite 00613 Indoor Thermometer & Hygrometer with Humidity Gauge, 3" H x 2.5" W x 1.3" D https://www.amazon.com/dp/B0013BKDO8/ref=cm_sw_r_cp_api_i_xRT4Db8N3X0K6

Rope hanger

iPower GLROPEX2 2-Pair 1/8 Inch 8-Feet Long Heavy Duty Adjustable Rope Clip Hanger (150lbs Weight Capacity) Reinforced Metal, 2 Pack, Black https://www.amazon.com/dp/B018WIOEDA/ref=cm_sw_r_cp_api_i_iST4DbF0EQJAK

Light timer

BN-LINK 7 Day Outdoor Heavy Duty Digital Programmable Timer BND/U78, 125VAC, 60Hz, Dual Outlet, Weatherproof, Heavy Duty, Accurate For Lamps Ponds Christmas Lights 1875W 1/2HP ETL Listed https://www.amazon.com/dp/B07G9RK4VV/ref=cm_sw_r_cp_api_i_wWT4Db5Q74NPA

PH meter

Digital PH Meter, PH Meter 0.01 PH High Accuracy Water Quality Tester with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium Water PH Tester Design with ATC (2020-Yellow) https://www.amazon.com/dp/B08197LX6H/ref=cm_sw_r_cp_api_i_TXT4DbZ8TF1W

Tower of Power

Hydrofarm TMTOP6 Tower of Power https://www.amazon.com/dp/B001WAL58I/ref=cm_sw_r_cp_api_i_f1T4Db88GD2GE

Loupe

VIVOSUN 30X 60X Illuminated Jewelers Loupe Foldable Magnifier with LED Light for Jewelry Gems Watches Coins Stamps Antiques Black https://www.amazon.com/dp/B07VK1LVKX/ref=cm_sw_r_cp_api_i_62T4DbR2KDDY4

Measuring cups.

Garden Smart Measuring Glass (1, 1 ounce) https://www.amazon.com/dp/B073C6S1LS/ref=cm_sw_r_cp_api_i_o5T4DbQFTS4FY


Fox Run Brands 4892COM 4-Ounce Mini Measuring Glass, Regular, Clear https://www.amazon.com/dp/B000N4CQWI/ref=cm_sw_r_cp_api_i_95T4DbTWPWNMP


Get some short heavy gauge cords

Still haven’t said what medium, so I can’t recommend anything there for nutes or pots. Since your new, I’d consider soil and airpots.

You’ve got lots to learn, buy the grow encyclopedia.

The Cannabis Encyclopedia: The Definitive Guide to Cultivation & Consumption of Medical Marijuana https://www.amazon.com/dp/1878823345/ref=cm_sw_r_cp_apip_9RIDjvgDjnPoc

I’m sure I forgot something, it’s off the top of my head, you’ll always be running and picking up a trinket or two. That said, this will get you far down the path.

Need to decide medium and I can help point you towards genetics. Probably clones to start off.

u/FatZombieMama · 3 pointsr/portlandhomegrowers

You'll need to contain the plants inside a grow room or tent, then set up a way for fresh air to get in and smelly air to get out. You'll need a fan or blower to move air from the in-vent to the out-vent. On the out-vent end, set up a filter that the air has to go through, which will clean the odor from it.

An expensive but easy/effective way to do this is to buy a carbon scrubber with fan like this: http://www.amazon.com/gp/product/B004Q2ER5C

A much cheaper but DIY way is to set up a good fan and make sure all air passes through one or two layers of carbon filter fabric like this: http://www.amazon.com/Cut---Fit-Carbon-Pad-Purifiers/dp/B000U204W2

Edit: if you haven't looked at tents yet, there's a good selection at amazon: http://www.amazon.com/b/ref=sr_aj?node=3480699011&ajr=0 - they make it much easier to control venting, lighting, temperature, humidity, etc. For 1-2 plants, don't go smaller than 4 square feet, and give yourself plenty of height.

u/wildwild94 · 1 pointr/microgrowery

I understand being overwhelmed at first here, but I couldn't imagine trying to figure it out from a different language, so props to you! You can definitely build your own setup, or you could purchase a grow tent. The sizes range anywhere from 4x4x7' (or 4 feet by 4 feet wide and 7 feet tall), smaller, bigger, there's something out there for everyone. Some common lighting sizes with MH/HID (metal-halide/high intensity discharge, just different styles for different stages) bulbs are 400W, 600W, 1000W or so I've seen on here. You could also go with LED lights, but I don't know much about those. It depends on how many plants you'd like to grow and the size of your space.

As far as fans, I would get more powerful inline fans like this or this to actually move the air around if you're planning a bigger grow. If you're not too worried about a carbon filter, which it never hurts to be, maybe you could try making a DIY one with some supplies from your store and a guide from this sub?

Hope this helped, best of luck and please update us! (ps your English is actually fine and easy to understand)

u/IcyKettle · 3 pointsr/HomeImprovement

This is why I'd never buy a smaller fan. Not only do you have to make up the difference, but you have to do it in such a small area, which is even tougher. If it were several inches, you could slap up some new drywall scraps and then mud/paint. But 3/4", that's like doing drywall surgery. Pain in the butt.

If possible, I'd go up in size. Even if it's just 3/4" in the other direction, it's just cutting drywall. That's easy.

Check out the Panasonic Whisper line. I installed one in my basement bath and it's awesome.

EDIT: I see now you're saying the bezel does cover the hole. In that case, I wouldn't worry about it so much. You can probably stick some foam backer rod or other cheap weatherstripping in there. It's going to be hidden, anyway.

EDIT 2: Someone else rec'd expanding foam. Indeed, that's probably the most ideal solution. But I wonder whether you'll have anything to back it. I'm imagining a 3/4" gap between drywall and the fan enclosure, with literally nothing above. Just open air. So, if you spray foam up there, it's just going to fly up into the joist bay. I suppose maybe you could spray it directly on the side of the enclosure. If it sticks, you can build it up that way. Also, expanding foam can get VERY messy and it sticks to everything. Have water and maybe even acetone nearby for cleanup. Wear gloves. Good luck!

u/codec92 · 2 pointsr/microgrowery

First off, i'm simply recommending them, the stuff you got works but theyre a bit over priced so i'm going to recommend a few cheaper stuff.

You can get away with a 4'' fan/filter/duct with the grow space tent you provided. heres a recommended one.
https://www.amazon.com/gp/product/B004Q2ER5C/ref=oh_aui_detailpage_o08_s01?ie=UTF8&psc=1
Your tent and led is fine
Ph up and ph down is fine as well, i recommend getting a digital ph and ppm meter combo on amazon, doesnt matter if theyre cheap, they'll work.
As for your timer, i highly recommend this https://www.amazon.com/gp/product/B0042I5FF6/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1
That timer will give you the ability to upgrade to two led if you want too in the future.
Don't forget hangers for the lights.
https://www.amazon.com/dp/B0098R0600/ref=twister_B00FL6MTJI?_encoding=UTF8&th=1
Everythign else seems fine.

u/captaindaylight · 2 pointsr/microgrowery

I was planning on going with fox farm nutrients and I just ordered a ph tester last night. I tried googling it and found no luck, but how do I cheaply aerate the water?

I also looked up an inline fan, would you recommend a six inch in fan? I'm also unsure of the purpose and set up issues of an inline fan. Sorry for being so needy - I tend to get a bit overwhelmed with the details when I take a project like this up and unfortunately need a. It of hand holding. Thank you btw for your help.

Edit: this air filter I was looking at comes with an inline fan, but I think I'll need the 6 inch one since that's the size of my light exhaust.

u/SiLhoueT_Te · 2 pointsr/microgrowery

I see you have 4" ducting but trust me you're definitely going to want to have this, thankfully 6" ducting isn't to expensive. Also buy these, so much easier than duct tape and these for managing the ducting. This and this too for supporting the inline fan and filter, the inline fan at full power will vibrate very slightly and I feel that the bungee cords help minimize vibration. I usually use zip ties for managing cords but also as a precautionary measure, I have a few loosely secured zip ties on my inline fans just in case a bungee cord were to become unsecured which that has never happened thankfully but you can never be to safe.

u/XeenRecoil · 3 pointsr/microgrowery

Okay 4 plants with good genetics can yield just as much weed as 6 plants with lesser genetics.

So here is what I recommend.

Tent: 4x4 minimum with 5x5 preferred because it gives you room to walk in the tent which saves your back and also gives you room for extra equipment inside the tent, buy Vivosun they are good quality and have excellent zippers.


Seeds/breeders: Dinafem and Dutch Passion are excellent breeders you can buy both from Dinafem.

https://www.dinafem.org/en/

Grow Light: Depending on how large of a yield you want you have several options.

500 Watt Samsung LED.

https://meijiuled.en.alibaba.com/product/62001333924-807906070/Fomex_hlg_550v2_Samsung_lm301b_480w_288_full_spectrum_dimmer_function.html?spm=a2700.icbuShop.41413.8.24d4185dhzMSXW

320 watt Samsung LED.

If you want more than 500 watts in a 4x4 or 5x5 you can buy more than one of these lights and hang them side by side.

https://meijiuled.en.alibaba.com/product/60803100408-807313817/2018_new_products_quantum_board_800_V2_samsung_lm301b_top_bin_full_spectrum_led_grow_light_with_320W_HLG_driver.html?spm=a2700.icbuShop.41413.72.39352189gT0xyF

Ventilation:

Exhaust fan.

https://www.amazon.com/gp/product/B074XBXFPD?pf_rd_p=c2945051-950f-485c-b4df-15aac5223b10&pf_rd_r=MZ90W6M80NJB8KY91153

Carbon Filter.

https://www.amazon.com/gp/product/B01731MLFK/ref=ppx_yo_dt_b_asin_title_o00__o00_s01?ie=UTF8&psc=1

Ducting.

https://www.amazon.com/dp/B0791V19H7/?coliid=IOTPSB8SN2VX3&colid=2JRQ421G587OR&psc=0&ref_=lv_ov_lig_dp_it

Fertilizer/supplements:

https://www.advancednutrients.com/

Misc stuff:

Hygrometer.

https://www.amazon.com/dp/B01HDW58GS/?coliid=I3I7T3XZ9CIWY3&colid=2JRQ421G587OR&psc=0&ref_=lv_ov_lig_dp_it

Rope Hangers.

https://www.amazon.com/dp/B07BWQB49J/?coliid=I3UY93HADIWB52&colid=2JRQ421G587OR&psc=0&ref_=lv_ov_lig_dp_it

Jewelers Loupe.

https://www.amazon.com/dp/B077XWJGN4/?coliid=I2Z2SKYZ5WH6JZ&colid=2JRQ421G587OR&psc=0&ref_=lv_ov_lig_dp_it

Trimming Scissors.

https://www.amazon.com/dp/B00114TK46/?coliid=I1DY00ZE56UXO4&colid=2JRQ421G587OR&psc=0&ref_=lv_ov_lig_dp_it

Felt Pots.

https://www.amazon.com/dp/B00TF9E6XE/?coliid=I21TH7VWPFRA0E&colid=2JRQ421G587OR&psc=0&ref_=lv_ov_lig_dp_it

TDS Meter.

https://www.amazon.com/dp/B01N2O1Z5B/?coliid=I1SGIRSI7FWY4V&colid=2JRQ421G587OR&psc=0&ref_=lv_ov_lig_dp_it

pH Meter.

https://www.amazon.com/dp/B07M87S9F4/?coliid=I2H2GCFLMBVHM4&colid=2JRQ421G587OR&psc=0&ref_=lv_ov_lig_dp_it

Is there anything else I can help you with?

u/Doodydud · 2 pointsr/gpumining

It's a hot mess at the moment and I don't have a good photo, but here are the pieces:

u/EdiblesDidmeDirty · 2 pointsr/microgrowery

Get this fan. Proper ventilation is super important for many things.

Seeing as you want LED, Mars Hydro is a good option for the price. For my 3x3x7 space I have a 900 watt LED, a bit strong but its working great.

Im always going to recommend more natural techniques, so if you are interested give this a thorough read

u/Probably_Not_Evil · 2 pointsr/minipainting

Thought I'd chime in. I just got my airbrush compressor and airbrush last Friday. But I'd done a bit of research and had a plan.

I built this out of parts from Amazon totaling $50 and a cardboard box.

The main components are:
An air filter. Try and get something that filters more particulates. Like smoke, mold and pollen, but a nice one if you aren't blowing the stuff outside.

A cheap 4in hose like you'd have behind your dryer.

This thing. Dust Hood for 4-Inch Hose

And the Air Motivator

Though I'd recommend getting a different vent booster, as this one is a bit weak. But it does work. The great thing about a vent booster is 2 fold. It's already 4 inches wide so it fits right on the 4 in hose. And it's at the other end of the hose. So the noise is very muted. Though this fan is pretty quite. I'd say it's more quite than a tiny desk fan.

Oh. And we can't forget. About a kilometer of Duck Tape.

u/[deleted] · 2 pointsr/microgrowery

I didn't really read through the materials, just looked at the pics and the title (sub $40). $10 sounds like a much more reasonable price.

There's all kinds of sub-$30 duct booster fans out there on Amazon and elsewhere, but I honestly can't recommend anything like that.

(I found this one with a quick search, you'd need a reducer for the filter though. I'm sure there's a 4 inch model somewhere. http://www.amazon.com/LEDwholesalers-GYO2402-6-Inch-Hydroponic-Booster/dp/B003YFADW8/ref=pd_sim_indust_1 )

What people usually don't take into account is when you're pulling through a scrubber, you have to consider how static pressure affects the CFM rating. Increasing the static pressure a fan pulls against (ie, by blocking the intake, or in this case adding a scrubber) decreases the fan's CFM. This isn't linear across all types of fans.

A computer fan or cheap duct booster fan may be rated for 150+cfm, but as soon as you add a tiny bit of pressure to it, that drops close to 0cfm. With a centrifugal inline fan, it's built to overcome some of this pressure, and you can add much more drag to it without compromising your cfm.

If a cheap fan is good enough to cool your setup, then that's good, but don't expect to pull anywhere near the rated cfm. If you're going to use HID lighting, you should strongly consider just spending the money on a good fan/filter setup as well.

/fanrant

u/who-really-cares · 1 pointr/microgrowery

I’m not actually a fan expert, I just play one on the internet.

Yes, I think using multiple fans I think just helps even the airflow in a space.

Most people use a fan speed controller like this.

It allows for infinite speed adjustment which is nice to balance noise and airflow.

(I Think) the impeller design of the first two fans helps them move air efficiently when ducting and filters are causing resistance. While the more typical propeller like design of the last fan has trouble dealing with that, and just causes turbulence and decreased efficiency.

Also the impeller design should be much quieter.

u/NorthlandVapor · 1 pointr/microgrowery

Tent: TopoGrow 2-in-1 Indoor Grow Tent 108"X48"X80"

Lights: Three of these: MARS HYDRO 960w, apparently they just came out with a 2nd version of these at 900w, so here's that link

Soil:Fox Farm FX14054 Happy Frog Potting Soil

Pots:Fabric Pots
Humidifier:3.5G humidifier

Fan: basic large oscilating fan

Exhaust:AC Infinity CLOUDLINE T6
CO2 Bag: Exhale 365

Fertilizers: Technaflora Recipe for Success Starter Kit
Timers: Basic ones

Basil Seeds: because basil is fucking delicious

let me know if you all see anything extra i need or anything you think i could improve on!

Thanks again for the help!

I just switched to 12/12 from 24/0, started the flowering formula for the nutrients, and switched on the "bloom" light on the lights.

u/the_real_sasquatch · 1 pointr/microgrowery

Depending on the outdoor temperature where you live, you may want to reverse that airflow direction, so you're venting outside. You will need the intake airflow to be temp controlled, around 70-ish F. If you get extreme cold or heat where you live, drawing your intake from outside will give you trouble. However, with your budget, you can definitely afford a name brand carbon filter (Phresh is a good one), so you won't have to worry about smell.

There are a few ways to limit the fan noise. Some combination of: (1) a larger 6" fan, turned down with a fan speed controller, (2) a "silenced" fan, (3) insulated ducting, and/or (4) building a box around the fan to muffle the noise.

Also, you don't have to limit yourself to a dwarf autoflower with a 30x23" space. You can grow a pretty good size photoperiod plant in there, or maybe two smaller ones.

This is a pretty good light setup for that space, if you aren't scared of doing a little minor assembly (it's really easy). It can be done a little cheaper, but that's a pretty good, complete package (discount code: growmau5). Get the driver ending in 2100B and the poke-in 3500K SE chips, and add THIS dimmer. Assembly instructions are linked at the bottom of that page.

u/AndysPanties · 44 pointsr/bestof

These carbon filters are used mostly in commercial spaces. In the United States they are commonly found in marijuana grow houses to move air outside. A carbon filter removes a high percentage of odors to reduce the risk of detection.

I like them in my home because I'm not a fan of buying other scented products that "mask" smells. When I walk into my home and my carbon filter is on it smells clean. I'm not sure if that clean smell is due to something from the carbon? Either way it's a clean, crisp smell that many people comment on and cannot be replicated by chemicals.

Cons: inline fans are loud and the system is a little bulky. Noise can be reduced by adding ducting to the end or buying insulated fans as referenced below.

Pros: I breath amazing air. You can cook/smoke inside your home and it's still going to smell amazing!

Filter: https://www.amazon.com/gp/aw/d/B008NYF8S4/ref=ya_aw_od_pi?ie=UTF8&psc=1

Quiet fan: https://www.amazon.com/gp/aw/d/B00EIRU2YU/ref=ya_aw_od_pi?ie=UTF8&psc=1

u/CBD_Hound · 2 pointsr/microgrowery

If your house has conditioned air, you might be able to draw off of that to cool your cabinet in the attic. A small cabinet can be cooled by a 4" line and a real exhaust fan. Install a bathroom fan style ceiling grate in an out of the way place (spare bedroom closet?) and no one will know what's up there. Just, uhh, don't pull from the bathroom... Not only would you suck bathroom smells into the tent, but if your bathroom fan is powerful enough and the door is shut, it could conceivably pull air from the tent into the bathroom 😬

Look for a fan that can do in the neighbourhood of 200cfm, preferably with a speed controller. I have this Vivosun one: https://www.amazon.ca/dp/B01DXYMGOM but if you're not on a budget, this one would be excellent: https://www.amazon.ca/gp/aw/d/B06ZXWN3BG

Avoid the super cheap "booster" fans, they're only useful as an add-on in the middle of a long run.

u/abovethebelt · 2 pointsr/canadients

You again! Thanks for your help :)

I've also read that booster fans aren't great if carbon filters are involved and I'd rather have too much power than too little. I'm legally only allowed to grow 4 plants so I don't think my setup will ever expand beyond a 2'x4' tent, 3 plants at a time. Your 10x12 room is much larger than my small tent, so perhaps a booster is sufficient even with a filter?

​

It sounds like a 6" inch inline fan is almost overkill since I'll likely be running it on low full-time. I also use my grow-room as a small office so quiet is preferred.

​

I"m wondering if a 4" inline duct fan with a carbon filter is the way to go, or do you still recommend a 6" inline with the carbon filter, at low setting? I'm looking at this fan on Amazon. The total cost is $193CAD including filter/ducting. There's only $10 difference between 4" and 6" so 6" is likely better.

​

​

u/DJsupaman · 11 pointsr/CanadianMOMs

> i basically just need a light and thats it? if i want to grow autoflower only

oh boi... alright here we go.

youll need duct fans for both ventilation and heat dissipation, especially if you go with HPS/MH lights 600/1000watts will require reflectors with ducting so you can connect to it. This will need to exhaust out of your tent. Then you will need a intake fan coming preferably from outside. Youll most likely also need a Carbon filter attached in series to your exhaust fan. Your light will have a ballast as well, which creates a good amount of heat so plan for that to be located outside your tent. Youll also need smaller fans in the corners so you can keep a good air circulation going (hurricane fans are great). Also consider using T5 lights when starting your seeds off as your higher wattage lights are not good for seedlings. Also get a few supplies like gorilla tape and duct clamps and anything else you might need to secure everything together.

When it comes to growing, even if you are only doing autos youll need smart pots, fertilizer, promix HP, perlite plus both vegging and flowering nutrients. Have access to PH up and down solution, and also get a Ph Pen + PPM meter (TDS).

Ive only linked amazon, there are probably other local options for you.

u/Crazyfrog2017 · 2 pointsr/Autoflowers

This is the link for the fan im using so you can see specifics easier : https://www.amazon.com/dp/B074XBXFPD/ref=cm_sw_r_other_apa_i_clzWDbV60BEY3

Im in a vivosun grow box.
https://www.amazon.com/dp/B07HQMX3S1/ref=cm_sw_r_other_apa_i_fpzWDbMGRGRDA

using a 1000 watt led light
https://www.amazon.com/dp/B07MZMHP8P/ref=cm_sw_r_other_apa_i_AqzWDbBENDE67

As well i have a small humidifier in there for obvious reasoning..lol

Hope i helped as much as you need.
Fair warning though the light i have is i believe overpowered for the size of my tent. Great luck growing frient..

Let me know if i can help more..

u/smokeNtoke1 · 1 pointr/microgrowery

I assumed you had a good inline fan for exhaust, as they’re necessary to help keep humidity down in late flower (or you risk mold). You can get away with passive intake (no fan, just a hole), but you’ll need a good exhaust fan.

You can do it on Amazon for ~$80, and the $45 fan should last you many grows. I recommend this 4" inline fan since it comes with a speed controller, and something like this filter, since it's cheap but will actually get rid of smells for a couple grows.

u/StockEmotion · 1 pointr/microgrowery

All I can tell you is - follow the universal truth - You get what you pay for. Of course there are a few exceptions, I've found great quality products for cheap, but those gems are far and few between right?

That being said, you are on the right track. After reading reviews I ended up going with this filter and then I got this fan and so far they've been great. The speed controller is a nice touch. When it comes to carbon filters, they are mostly all the same in terms of design, so if you go with a cheaper brand to save 10 bucks I really don't think you'll be hurting yourself or your set up, but things like fans, mechanical devices, i wouldn't cheap out on.

u/rilech18 · 1 pointr/homelab

Exactly my plan. Found a good and quite fan designed for AV racks and a special vent designed for windows:

The vent: https://www.amazon.com/dp/B01M17V4CO/ref=cm_sw_r_cp_api_i_-39QCb1FACNR0

The fan: https://www.amazon.com/dp/B06ZXWN3BG/ref=cm_sw_r_cp_api_i_c0aRCb9HB2TGH

And a standard dryer hose and a custom “box” to fit to the back of the rack and have a 4” hole in the top (to benefit hot air rising) that goes to the fan then the vent.

u/mawaukee · 1 pointr/DIY

I had the same problem in an older house -- heat rises to the second floor AND it's farther away from the central AC. What you really need is a duct boost fan, which will double the air being pumped to the second floor. You can buy them at any home store for under $30. They can be activated by a sail switch (which senses the flow of air and turns on the fan to boost the flow) or a solenoid that turns it on when the furnace fan fires up.

You can install a duct boost fan in a half hour. Trust me, it's worth it.

https://www.amazon.com/VenTech-VT-DF-6-DF6-Duct/dp/B005KMTYFK/ref=sr_1_1?ie=UTF8&qid=1466433488&sr=8-1&keywords=duct+booster

u/TurdFerguson24 · 6 pointsr/HomeImprovement

I agree with you. And for about the same price, you get a much better and much quieter fan. I have two Panasonic WhisperCeiling 110 CFM fans and they are amazing. I paired them with a discrete timer switch and I feel like i'm living in luxury. Very easy to install. It appears Amazon is out of them right now, maybe discontinued the model, not sure.

u/Legal_In_OR · 1 pointr/microgrowery

So I recently added this fan & filter combo, which I must say was MUCH larger than I had anticipated, and has had an immediate effect on my RH. I went from about 35% to around 16% in a couple hours. Shortly after, my flowering plants are showing twisted and drooping leaves. Can this be the cause?

The Aussie Blues is 90% Sativa and already had drooping leaves closest to the flower, but no twisting. Note that the plant looks healthy otherwise, all the leaves have a nice even color and are perky. Do certain strains look like this when flowering?

Also it is growing a lot of popcorn, should I trim this off before it develops more?

Thanks for the input, guys.

u/Ty0000000 · 2 pointsr/microgrowery

No problem! Do you have the space for 72 inches of height vs 60? Also consider a 3x3 would give you 9 square feet vs 8 square feet of a 4x2. Tents should be similarly priced these dimensions.


For your light this would be an awesome choice https://m.alibaba.com/product/62323084952/detail.html?spm=a2706.wapshop.0.0

240watt quantum led board

AC Infinity CLOUDLINE T4, Quiet 4" Inline Duct Fan with Temperature Humidity Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics https://www.amazon.ca/dp/B06ZXWN3BG/ref=cm_sw_r_cp_apa_i_JL1MDbQ099E88

This would be a top of the line exhaust fan and then you would want a 4 inch inline fan for bringing in fresh air. If looking at other brands of exhaust I would suggest sticking with 4 inch for your space.

A carbon filter if smell is an issue.

A fan for the bottom of your tent for circulation.

Something to elevate your planter off the ground.

A powerbar that's rated 50% more amps than you are plugging into it.

Something to measure your temperature/humidity and depending on the temperature/humidity maybe a humidifier or dehumidifier

Maybe a clip on fan for circulation above the canopy.

Ratchet cord for hanging stuff.

Maybe clippers for defoliating and eventual trimming.

Stuff to tie with for training your plant and maybe a scrog net if thata for you.

Happy growing :)

Edit: sorry, accidentally replied to main post instead of your reply!

Edit: apology 2, forgot that you were looking to do this all under $200. Will be tough. Might be cheapest to just start with a little nutes and start piecing your tent setup together over some time.

u/ItsMyOpinionTho · 1 pointr/GrowingMarijuana
u/bberr004 · 0 pointsr/Homebrewing

I would stick with using a fan. The trick is you cannot just put a computer fan blowing upwards into some insulated tubing. Think of blowing into a 12' pipe with a cap on the end; the air needs somewhere to go or it will not flow. You need to use a centrifugal fan (like this) in your keezer and figure out a way to attach it to smaller tubing (probably 1"ish in diameter) and run the tubing up to your beer tower in the kitchen. This way the cold air is blowing out at the top of your beer lines and will circulate back down into the keezer. If you try this with a normal computer fan it will not work; they are very low pressure but high cfm. Since your fan will be acting more like an air pump than a fan it needs to be a powerful centrifugal fan (higher pressure) or their will not be enough air pressure to travel through a 12' tube.

u/-DarknessFalls- · 2 pointsr/containergardening

Thanks! The reason I was wondering about phosphorus deficiency is due to the purple stems and leaf veins. It was mentioned to me that was not normal. In all honesty, I thought the plants were ok before then. There are a few with some wilting leaves and some of the lower leaves on a few plants started to curl on the edges. It may have gotten too warm inside the tent the other day. I’m ordering a ventilation system on Thursday from Amazon. Here it is. Ventilation System It’s supposed to monitor the temp and humidity and adjust fan speeds as needed. Thank you for your help and also for that link! I’m going there now.

u/TeethAreOutsideBones · 1 pointr/microgrowery

That will definitely work but check out ac infinity fan on amazon. You still need to get a filter but holy fuck this fan is amazing. I just installed it today and it is so incredibly quiet and automatic adjusts the fan speed depending on what temp you want to maintain in the tent.

AC Infinity CLOUDLINE T4, Quiet 4” Inline Duct Fan with Thermostat Speed Control - Ventilation Fan Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics https://www.amazon.com/dp/B06ZXWN3BG/ref=cm_sw_r_cp_api_cLkRAb5CRK5QX

u/Ekrof · 2 pointsr/SpaceBuckets

I wouldn't trust a PC fan for a carbon filter, all the ones I have seem very underpowered for that function. That being said, I've never tried the DIY filters, so other people might have other opinions.

You could use a more powerful fan, like this: http://www.amazon.com/VenTech-DF6-Duct-Fan-240/dp/B005KMTYFK/

Also ONA Gel might be useful in your situation

Cheers and welcome to the community! :D

u/captainplantit · 1 pointr/microgrowery

Yeah dude, as a general FYI amazon is where I get EVERYTHING because you can get free delivery and no neighbors will know what you bought.

For your small grow, I would try and find the smallest carbon filter they sell. You might not actually have too much of a problem without one if you're only growing one or two plants (unless you don't have a medical card in which case better safe than sorry).

EDIT: You could probably use this filter and this inline fan. I've used about 3 of those inline fans in my grow and they're pretty solid.

u/legalpothead · 1 pointr/trees

The Aerogarden grow systems are nice, but they aren't really set up for growing weed. For one thing, you would want to use supplemental lighting, even with the new, powerful lamp that comes with the Ultra. And you would probably want to get a grow tent in which to house it, with a fan and an air filter to cut down on smell during flowering. So in addition to the Ultra, you would still need to make some more purchases anyway.

I contacted Aerogrow when they came out with the Ultra, and asked if it would be a good unit for growing marijuana. They actually didn't want to answer my questions, saying they couldn't condone the use of their product for illegal purposes. I explained that I lived in a legal state, but they weren't having it. So I had to do the research online. Turns out that for weed, more photons = bigger, more potent buds. So you can grow a crop with the Aerogarden Ultra, but you would want to add more light.

I grow 2 plants at a time. I just use regular potting soil and regular fertilizer, Miracle-Gro. I have a small grow tent, and I use a Marshydro 300 lamp. In addition, I have an air filter and inline duct fan. I get seeds from Herbie's; they ship reliably and discretely.

Overall, it's a pretty cheap setup. There are coathangers and duct tape involved. I get a yield of 2 oz cured bud per plant, so that's 4 oz per crop, and I can grow 3 crops per year, so that's 12 oz per year. Plus, I convert the leaves and scrap into bubble hash, using a set of bubble hash bags. So 2 plants at a time yields more than I need for personal use. I could add a 2nd lamp and get a bigger yield, but it's not necessary for me.

Everyone makes a few mistakes on their first crop, so if you can yield 1 oz per plant, you're ahead of the game. I also recommend Jorge Cervantes' Marijuana Horticulture.

u/William_Carson · 1 pointr/microgrowery

I'd recommend getting the light fixture with an air cooled hood instead of the cheap reflector. https://www.amazon.com/dp/B07D8VV2ZR/ref=psdc_14252961_t1_B00P8P51ZQ?th=1

The lamp comes with a bulb, they are cheap, but they do work. At some point you want to get better bulbs.

Looks like you'll need an inline fan for ventilation. https://www.amazon.com/Hydrofarm-ACDF6-Active-Air-Inline/dp/B00KWYJQYA

The fan can be turned down using a speed controller https://www.amazon.com/ACTIVE-AIR-ACSC-Speed-Adjuster/dp/B007TFTITS/

u/Home_Groan · 3 pointsr/microgrowery

I spent some more time today reading up on fans on some other forums. I've ruled out "booster fans" completely as it seems the only upside to those is the price. Noise and power seem to be the big trade off.

PC fans certainly are low cost and fairly quiet, but they also seem like they'll require a bit more work to get them installed in terms of adapting a square fan to round ducting/grow tent ports. They too seem to be at the low end in terms of power, and though I don't need a carbon scrubber with my current setup, it might be prudent to allow for one if required down the road...

So, now I'm leaning towards a proper centrifugal fan (eg. http://www.amazon.com/gp/aw/d/B005KMOJPK/ref=aw_2nd_sims_5?pi=SS115) along with a speed controller, as it seems they can be relatively quiet when running at lower speeds. The added benefit is that I could potentially cool a 400W HID with this fan if I decided to repurpose this little tent at some point.

Thoughts? Would a similar fan from Sunleaves (at three times the price) be significantly quieter?

u/NanzoMcNab · 1 pointr/microgrowery

Nice! You won’t be disappointed. Good luck!!!

Just an FYI - it looks like the 135 is a lit you have to assemble and the actual light board is the same wattage as the 100. Either way you’ll be happy.

The HLG 100 was fully assembled:

https://www.amazon.com/Horticulture-Lighting-Group-High-Efficiency-Upgraded/dp/B07C59J8L2

Last bit of advice - if you’re going to get a exhaust fan don’t get the Vivosun. I love their tent but the fan started making horrible noise after 17 days. They were cool about the refund but I went with:

https://www.amazon.com/gp/aw/d/B002JQ4N92?psc=1&ref=ppx_pop_mob_b_asin_title

It’s not a variable speed though but at least it’s an even sound. Like a window AC unit. Maybe a bit louder.

u/lukistke · 2 pointsr/microgrowery

I have a similar tent and I just started my first grow about 3 weeks ago. I was having issues similar to you. I was above 80 degrees and low humidity. It burned my first plant right up. I fixed it with three things:

  1. This exhaust fan - Just put it on the outside top of your tent so that it pulls all the hot air that has risen to the top out.
  2. I put 7" ducting in the bottom vents to keep them open at 100% for intake. You could put one of these in the hole and it would really help the temp a lot. Put that fan you have in the tent directly in front of the intake hole at the bottom as to maximize the amount of fresh, cool air you pull in the tent.
  3. A humidifier. I went to goodwill, found a 2.5 gallon for $15 and it works perfect. Before I was at like 15% RH in the tent, now Im above 50%

    EDIT: Now I get ~70-74 degrees F inside the tent.
u/Dirtbagfarmer · 2 pointsr/microgrowery

1 plant per pot. I'd go 3 gallon pots. Smart pots are great and harder to fuck up.

165 Cfm 4 inch fan would work well. I use that in my 4x2.

Edit. This fan. http://www.amazon.com/Active-Air-inch-Line-Fan/dp/B002JQ4N92

Edit edit. That light is only 200 true watts. You need around 400 watts for 8 square feet. You tent is 4x2 and that light is good for 2.5x2.5. I'd look into a 400 hps/mh combo.

u/86rpt · 2 pointsr/microgrowery

Sure!
Also a put the wrong wattage on my lights above. Also had a buddy order it lmao. He hasn't been raided yet haha.

2x300w led- https://www.amazon.com/dp/B01HFZ3PC2/ref=cm_sw_r_cp_apa_CVjwyb4CPNXTK

2x2x4 tent was discontinued on amazon, but brand was Valuebox. Got it for dirt cheap like 40 bux

VenTech fan and filter
https://www.amazon.com/dp/B004Q2ER5C/ref=cm_sw_r_cp_apa_NYjwybWN2VC8K

3 gal smart pots - the 2x2 can fit four of these snugly

u/BarbarianSpaceOpera · 2 pointsr/cannabiscultivation

See if this link works: https://www.amazon.com/Active-Air-inch-Line-Fan/dp/B002JQ4N92.

Also, definitely get a fan speed controller and set that baby at the lowest setting. These guys can really go and you're not gonna need all of that CFM for such a little tent. The key is that these fans can create higher pressure (to overcome the resistance of the filters) at lower CFM (to not turn the whole room/closet into a wind tunnel).

If you then hook up the fan to a temperature switch it'll only run when the tent gets hot enough. This will save energy, create less noise, and also avoid creating temps that are too low at night if you like your apt to be cooler while you sleep.

This is all way more info than you asked for but it'll be a really nice, easy system and it'll work with any size tent if you decide to go bigger in the future.

u/Weedenski · 6 pointsr/DIY

I'm a building inspector in Washington state. This sounds about like our ventilation code.

Positive drainage 'plane' is probably what you are looking for. Ideally, IF you had any condensation In your duct, they want you to slope it to the exit so it would drain outside, and not back inside.

We have a colder climate here than in Texas, and I haven't heard anyone mention it.

However, you still want to ventilate your bathrooms, kitchens,and laundry rooms because of all the moisture from bathing, cooking and doing laundry.

You choose, continuous ventilation at 20cfm, or intermittent ventilation at higher cfm(like 80-100).

1.5 sones is an indicator of how loud the fan is. That's a crappy loud, cheap low cfm fan....which means you'll hate hearing it run, and means you're likely to turn it off too soon. This means you'll get mold in your home...

Spend $120bucks on Amazon and get a better, quieter fan (Panasonic 80 cfm) which can run continous, OR intermittently.

www.amazon.com/gp/aw/d/B003TJAGO4/ref=mp_s_a_1_1?ie=UTF8&qid=1521439754&sr=8-1&pi=AC_SX236_SY340_FMwebp_QL65&keywords=panasonic+bathroom+fan&dpPl=1&dpID=41dkHb21dvL&ref=plSrch

As far as ducting... it sounds like they want you insulate (R-6) your ducts. This will likely also help with preventing any condensate inside. And it appears they won't allow a flexible connection at the exterior vent termination....don't know why though.

Almost all modern fans come with energy star rating, and backdraft dampers.

Electric requirement is for GFCI. Kinda stupid since fans are in ceilings, even in bathrooms, so no real danger of electrical shock...but not a bad idea I guess.

Good luck.

u/brad1775 · 4 pointsr/Homebrewing

The purpose of those lines is to create airflow to prevent carbon monoxide poisoning. They function passively, so you should uncap them, for safety sake (or at least make sure a COO monitor is installed... fuck, I don't have one installed....). Notice how one inlet is (or was, or should be) at eye level, and the other is near the floor? That is to make use of when heat rises, the air near the inlet of one will rise out, and the cold air near the bottom of the other will sink, starting a circulating flow. Yes, this chills the basement, but, if it's unfinished that's OK.


a 100k but furnace may use rpoportionatly more air for combustion, but its in a controled space and a very efficient combustion, while the 54K burner will disperse the COO along the heat current it creates meaning you need to remove much much more air to gather all the gasses you should, than with just a sealed vented furnace. Also, there is a difference between inline duct booster fans, which aid in airflow, but lack dynamic pressure, and turbine fans which are both consistant rate and high dynaic pressure (meaning it would be able to pull air from a further distance with less drop in CFM)

These http://www.amazon.com/LEDwholesalers-GYO2402-6-Inch-Hydroponic-Booster/dp/B003YFADW8 won't work,

you'll need this http://www.amazon.com/Active-Air-720-Inline-8-Inch/dp/B002JQ4K1I

or for a quieter operation with better dynamic pressure, this http://www.amazon.com/gp/product/B001I4DHJI/ref=pd_lpo_sbs_dp_ss_2?pf_rd_p=1944687782&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=B004C2IWIE&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=1V2RCEEAMG31CYMSKC7B

I am not trying to be alarmist, but I know the math off the top of my head, because I've worked with it SOOOoo many times, and as they are for safety, I urge you to heed my warning.

u/ceppie23 · 2 pointsr/microgrowery

Ugh i wrote a lengthy reply but my phone crashed. So quick reply. My one hlg in 4x4x6 produces 10 degree increase. I use this fan for exhaust:

AC Infinity CLOUDLINE T6,... https://www.amazon.com/dp/B074XBXFPD?ref=yo_pop_ma_swf

Which i love because of controls and it isnt that loud. And easy to adjust temp and fan speed.

u/Cap-N-Quint · 2 pointsr/microgrowery

Thanks for reaching out. I saw some talk about COB LED. Any recommendations? I'm also not quite sure why they're said to be superior lights. Just spectrum? I saw this, but couldn't find any info on the actual wattage or people using it. https://www.amazon.com/Roleadro-HYG05-2X200W-W-Spectrum-Hydroponic-Indoor/dp/B00U2DP48I

Re: Fresh air. I'm also planning on having a few clip on fans inside the tent with a duct fan https://www.amazon.com/gp/product/B004Q2ER5C/ref=ox_sc_sfl_title_4?ie=UTF8&psc=1&smid=ATVPDKIKX0DER

The door to the closet doesn't close fully, and its incredibly thin plywood. The room itself has a pedestal fan and a window open for temp control.

u/omapuppet · 1 pointr/shroomers

> programmable power strip so I can set it to fan for as low as one minute a time several times throughout the day. Guess I should go pick up a fan

Automating as much as you can really makes your life easier, and you'll get more consistent results.

I used a setup where I had a duct booster fan blowing fresh air and the output of an ultrasonic humidifier and a small space heater into a 25 foot length of dryer duct that I piled into a plastic bin. The fan, humidifier, and blower (and lighting) were on X10 controllers to switch them on and off.

I had a scheduler program on the computer that would switch on the humidifier, and heater (if needed) then run the fan to blow the fresh air down the duct. The purpose of the duct was to give the water droplets time to evaporate; by the time the air reached the grow chamber it was nice warm and wet, but not dripping.

Once I got it all dialed in and added a thermometer in the grow chamber it was easy to maintain the right conditions with very little effort.

u/Camelbak44 · 1 pointr/Autoflowers

I popped my seedlings under the light, great for the warmth, and they immediately have light when they pop. As far as carbon filters, you can have one in your tent and blow it directly into your room, no need to blow outside. I recommend this : https://www.amazon.com/gp/product/B0051HDECS/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 very well priced,and includes carbon filter and speed controller for smaller setups. I have no experience growing without a carbon filter/ passive intake, but i can imagine without air flow(stale air), you may not have enough fresh air (specifically carbon dioxide) to grow properly Good luck!

u/eagleeyes221 · 1 pointr/3Dprinting

The duct fan that im using is this one on amazon.

https://www.amazon.com/AC-Infinity-CLOUDLINE-S4-Controller/dp/B07JB292JC/ref=sr_1_6?crid=1RWB03A6H659R&keywords=duct+fan+4+inch&qid=1573145365&sprefix=duct+fan+8+inch%2Caps%2C134&sr=8-6

I originally had used a smaller 4" duct fan that was rated for 100cfm but that wasnt strong enough to evacuate the fumes from my enclosure. Im pretty happy with this fan as its quiet and i can barely notice it running sitting next to the printer.

Im in a full enclosure that i built and my enclosure temps stay around 80 degrees F while printing with this fan running at max.

u/ender4171 · 1 pointr/DIY

I have a Panasonic Whisperline 6" fan that I use to vent the hot air from my server cabinet. It wasn't cheap, but it is SUPER quiet. I have it sitting on top of the server cabinet 3 feet from my head when I am at my desk and I don't even notice it most of the time. It is seriously quieter than my bathroom fan, but it moves up to 240CFM. The cheap "grow room" fans you see on amazon are loud as hell. It is worth it to spend the extra money on a good name brand. The Panasonic is industrial rated for continuous 24/7 use (unlike the burn-your-house-down Chinese fans), and if installed remotely (like in an atic) is basically silent.

u/ChubbyWinston · 3 pointsr/microgrowery

The lights are one for 18 hours and off for 6. Mine come on at 4 PM and go off at 10 AM.

I'm just using a power strip with a built in timer. Like this. Half the outlets are on a timer, the other half are always on.

I used to keep my fans on the timer as well, but I recently swapped them out for quieter models that are less powerful/noisy. Now I just run the fans 24/7. My main fan has a thermostat in it and will slow down and speed up depending on the temperature in the tent. I find it convenient as I work from home and my tent is in my office. If I didn't sit in the same room as the tent all day, I'd probably just stick with a cheap duct fan like this. It's easy to overdo it with fans in a small tent. I originally bought a big 6" fan but it was overkill. My carbon filters died fast because I was pushing so much air through them and it made more noise than I could stand.

My setup is pretty simple and cheap, but it grows more than I can smoke and I don't have to spend much time worrying about it. I pretty much just did a little research, went on amazon found a grow tent, and bought all the 'people that buy this also buy...' stuff.

u/RainyDayWoman12n35 · 2 pointsr/Autoflowers

I'm sure the fan will help but check whatever user guide that came with your light to be sure. The last thing you want is a fire. If you have the space and resources, having an exhaust fan like this to pull air out of near the top of your tent will do wonders for temp control.

u/MellyTheSmelly · 5 pointsr/microgrowery

The 600W LED I have has 2 built-in fans on top which keep it plenty cool. I keep the intakes open at the bottom of the tent and at the top of the tent I use a fan to pull air in through the carbon filter and out the back of the tent via flexible duct. I use this combo from Amazon filter/fan combo. Some people like to add a fan controller if the fan speed is too high and creating too much negative pressure or the fan runs too loud and doesn't need to be that high.

u/dcimonline · 2 pointsr/microgrowery

Alright taking into consideration the 12 plant limit here, my previous setup was too big for so few plants. So with some downsizing hopefully saves even more!

Tent - GROWNEER 48"x36"x72" Lodge Propagation Tent

Lights - HLG65 lm301b and red 660nm hydroponic grow light 4000K x 2

Kingbrite 240W samsung lm301h 288v3 quantum board X1

Fan - AC Infinity CLOUDLINE S4, Quiet 4” Inline Duct Fan with Speed Controller

PH Meter - Wellcows Digital PH Meter

PPM Meter - HM Digital TDS-EZ Water Quality TDS Tester

Carbon Filter - VIVOSUN 4 Inch Air Carbon Filter

Ducting - VIVOSUN 2-PACK 4 Inch 8 Feet Non-Insulated Flex Air Aluminum Ducting

Nutrients - MEGA Crop (2500g)

Botanicare CAL-MAG Plus Plant Supplement 2-0-0 Formula, 1 Quart

PH Control - General Hydroponics pH Control Kit

Soil - PREMIER HORTICULTURE 20380RG PRO-Mix HP High Porosity Grower Mix

Pots - Gardzen 10-Pack 1 Gallon Grow Bags x 2

Cloning Machine - CLONE KING 25

Total - 880.62 (includes shipping)

So with this setup ill keep 1 or 2 mother plants and then run the rest in SoG in 1 gallon pots. Using the 2 4000k lights for the mother plant and the cloning station and the 240w for the SoG area of the tent. Its a small setup but I think it'll work. Any idea what kinds of yeilds this could achieve? Any further input would be greatly appreciated.

u/ShhhIGrowWeed · 5 pointsr/SpaceBuckets

Honestly I thought the same thing, but it was a lot easier than I thought. Without having to wire anything, it was all pretty common handiwork with a drill or a Dremel saw. It's a GardenMate 8 Gal grow bag

Link: https://www.amazon.com/gp/product/B073NJYCFJ/ref=oh_aui_detailpage_o00_s01?ie=UTF8&psc=1


I used an Apollo Horticulture GL60LED Full Spectrum 180W LED Grow Light

Link: https://www.amazon.com/gp/product/B00FGFW0XO/ref=oh_aui_detailpage_o01_s02?ie=UTF8&psc=1

Fans:
https://www.amazon.com/gp/product/B01C82SYZ0/ref=oh_aui_detailpage_o01_s03?ie=UTF8&psc=1

u/admnstrator · 2 pointsr/news

hell yeah. There are activated carbon air scrubbers that you can even make on your own. Essentially all it needs to do is pass air through the filter. You can pick up activated carbon at pet stores. They sell it for fish tanks. Youtube has all kinds of DIY instructions for building an air scrubber.

If you have the money and don't feel like getting creative with some lowes buckets and a house fan though, you can get whole kits at amazon. Now keep in mind, the one I linked to is pretty nice, but you still need to get the duct tubing and if heat is an issue in your grow area, you'll most likely use this as an exhaust, but from what I've read they are your best solution.

u/Amish_Rabbi · 1 pointr/lasercutting

Canadian amazon link but I have this. https://www.amazon.ca/VIVOSUN-Inline-Ventilation-Variable-Controller/dp/B01CTM0JF2

I quite like it, but would go one size bigger if I had a static setup, mine I take in and out of the window so I kept the fan small, if it was all rigid then I would up size it.

It is very quiet, the fan on the laser is often louder than it and even when cutting MDF it pulls the smoke just fine

u/MachineGum_throwaway · 1 pointr/microgrowery

Wow for the LED, I will definitively look into LEDs if I decide to upgrade my old 400W HPS.

As for the fan, if it's anything like this type of duct fan, it won't work with the filter.

This is the kind of fan you need

u/static_Illmatic · 1 pointr/microgrowery

AC Infinity Cloudline, model depending on what you’re looking for and tent size. I have the basic S4 for my 2x3, it’s super quiet even when running on full power. Strong, durable construction and comes apart really easy for cleaning. I know they’re just exhaust fans and not super interesting but I played with mine for like a half hour before doing anything with it.

https://www.amazon.com/AC-Infinity-CLOUDLINE-S4-Controller/dp/B07JB292JC

u/my_age_88forshort · 1 pointr/weed

I'm confused, he told you about a carbon filter and im not for sure what your reply post is referring to. Anyways, you need a carbon filter. If you burn a candle the neigbor will now smell the candle and the weed. The carbon filter will work prefect. You don't have to run it 24/7. Just when your smoking and maybe 30 minutes afterward. Here is the carbon filter and fan combo: http://www.amazon.com/gp/aw/d/B0052ZPMAG/ref=mp_s_a_1_4?qid=1420334531&sr=8-4&pi=AC_SX110_SY165_QL70. And here is a speed controller for the fan so you don't have to have the fan on full blast: http://www.amazon.com/gp/aw/d/B00BLOSG7I/ref=mp_s_a_1_4?qid=1420334616&sr=8-4&pi=AC_SX110_SY165_QL70. This will take care of all of your problems. (Amazon links are for U.S.)
You can smoke in your house and the neighbor won't smell it. Good luck and I really hope you go the carbon filter route.

u/Jessie_James · 2 pointsr/HomeImprovement

Id' just install a fan in that hole. However, you MUST ensure it is rated for kitchen use. I had to install mine 45 degrees away from the stove.

I bought this one last year and it's great. It is so quiet we barely know it's on:

http://www.amazon.com/Panasonic-FV-20NLF1-WhisperLine-In-Line-6-Inch/dp/B000EDUIX2/ref=sr_1_5?ie=UTF8&qid=undefined&sr=8-5&keywords=panasonic+exhaust+fan+kitchen

You could use this in the hole: (I used two):

http://www.amazon.com/Panasonic-PC-NLF06S-WhisperLine-Accessory-6-Inch/dp/B00084UCH4/ref=pd_bxgy_hi_text_z

Then I bought some 6" duct and a vent through the side of my gable. It did not take long to install.

I did hire an electrician to install the on/off switch and wire it all up though.

Pics:

http://i.imgur.com/pIaUVCg.jpg

http://i.imgur.com/gxflsr6.jpg

The closest duct in this picture is for the microwave oven.

http://i.imgur.com/ffVVKI9.jpg

Here are other options:

http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=panasonic+exhaust+fan+kitchen&rh=i%3Aaps%2Ck%3Apanasonic+exhaust+fan+kitchen

u/TheNomadicHermit · 2 pointsr/Autoflowers

Thanks. Good call. I honestly probably won't be using it much though. It's more just a troubleshooting tool if my plants aren't happy, and for checking initial pH of my RO water so I knew when the membrane and DI resin were broken in. I've got a great TDS meter which is my primary tool for testing my water - if TDS goes over 1PPM measured, time for a new membrane. pH of the RO shouldn't fluctuate widely enough to be deleterious, so I don't foresee using it much, unless my plants are unhappy and I need to check my parameters to troubleshoot.

It seems accurate? it was cheap af and had a high rating so i just said fuck it. It wasn't a necessity item.

I'm such a fucking dork. The thing I'm most excited about (not pictured/still en route) is the exhaust fan. Thermostatically/hygrometrically programmable. Gonna play around with dropping my temps the last few weeks to try and induce purpuration. Cloudline T4, in case you're curious.

u/KTRyan30 · 1 pointr/HomeImprovement

Move air through vents with in line fans. Super easy if you have an attic.
AC Infinity CLOUDLINE S4, Quiet 4" Inline Duct Fan with Speed Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics https://www.amazon.com/dp/B07JB292JC/ref=cm_sw_r_cp_apa_i_lGRZDbYTQ5HB8

u/Gjproducer · 1 pointr/microgrowery

Just depends really. I would get the 8" with [THIS](VenTech VT SPD-CTRL VTSPEED Variable Dial Router Fan Speed Controller for Duct and Inline Fans https://www.amazon.com/dp/B00EVYGPJQ/ref=cm_sw_r_cp_apip_T765ZEGFCE2F1) controller and then get THIS duct fan and connect it to your intake. Note the duct fan here is 6", I just copied it from my Amazon orders so you might need adapters depending on what size your intake duct is.

I'm not running HPS though so other variables come into play for you. You will have to experiment once you make some purchases.

u/Panama__Red · 4 pointsr/microgrowery

Everything looks good besides the ventilation. That fan lacks the static pressure needed to pull air through a carbon filter. You need something more like this, though I recommend a quality fan if affordable. Also, you want to pull air from the top of the tent. If you pull from the bottom, you are going to have hot, stagnant air above the filter.

You'll probably be alright, but a dimmable power supply is helpful, especially in a small space.

u/negative_one · 3 pointsr/microgrowery

So I've put two Mars hydro 600 watt lights in a 2x4x5 tent and if I left it sealed up it will get too hot of course. In that tent I can get away with a 240cfm duct fan at the top vent hole of the tent and be in the 80s. I still have to leave the tents flap open or it gets too hot even with one clip fan and a large standing fan aimed at the tent door. This is in a cool basement and it's not even summer yet. I'm actually in the market for a couple of 300-400 CFL inline fans that are somewhat quiet if anyone knows of any. Looking at this one

u/RedeyedRider · 1 pointr/microgrowery

Here's a 4 inch fan with a built in variable adjustable knob from Amazon for less then $46 with free shipping.

Apollo Horticulture 4” Inch 190 CFM Inline Duct Fan with Built In Variable Speed Controller https://www.amazon.com/dp/B019INGAO4/ref=cm_sw_r_cp_apa_OYfUAb51BZ9S2

u/Dubtrub · 1 pointr/microgrowery

I grabbed this, and it's perfect for me. I wanted something quiet, and decided to get something bigger than necessary and run it at low speeds with a controller. This combo is super quiet when all hooked up. My little USB fan is way louder than this one.
https://www.amazon.com/dp/B004Q2ER5C/ref=cm_sw_r_udp_awd_grZXtb1E3FGP9K58

u/SuperAngryGuy · 5 pointsr/SpaceBuckets

>recommend a grow "bible", which would it be?

The grow bible or anything else by Jorge Cervantes:

https://www.amazon.com/Marijuana-Horticulture-Outdoor-Medical-Growers/dp/187882323X/ref=pd_lpo_sbs_14_t_1?_encoding=UTF8&psc=1&refRID=PH02JZK2F8GQF3WE1P5F

> How can I control odors when trimming, harvesting, and handling the plant in general outside of the bucket?

Ozone (controversial) or an open container of Ona with a fan blasting air over it. I do both at 3am when no one is likely to come over. I'll really crank up the ozone when I'm done and leave for an hour or so. Even being legal I still use this procedure.

The above is more for a harvest which can be very stinky. For steady odor control assistance you can drill a 1/4 inch hole or two in the lid of the Ona and just leave it in the living room.

ONA Pro works best in my experience but prefer the Apple Crumble. I have found that the Apple Crumble will not impart an odor on the plants if used in the same room.

https://www.amazon.com/Ona-Gel-Pro-30-oz/dp/B00AC1N4DM

>Do I need an air booster to use an inline carbon filter, or will a 12V PC fan have enough power on it's own?

Yes something. 12 volt PC fans often do not have enough static pressure for carbon filters. With AC fans you can use a light dimmer or a dimmer intended for inductive loads to control the fan speed if mechanical noise is an issue. The dimmers/speed controllers will usually generate some electrical noise or RFI.

https://www.amazon.com/Lighthouse-Hydro-Variable-Speed-Controller/dp/B00BLOSG7I

I can't really recommend a seed bank (I can buy clones) but they tend to be very discrete and with many you can mail cash. Their reputation would be severely harmed if they played any games here. Some accept bitcoin.

Someone else will have to recommend an online seed shop domestically. Sensi Seeds is likely the best due to original/better genetics but they are based out of Amsterdam. I would just pack the seeds in a small alarm clock and forget about it in the past when I smuggled seeds back to the US.

u/SpaceDurr · 1 pointr/SpaceBuckets

>Can you explain your buckets air flow and air filtration?

My bucket has two passive 120mm intakes that are covered with mesh filters and a single 120mm exhaust in the lid that connects to a 4" flange with dryer ducting. There is a 4" 190 CFM In-Line fan connected to a 4x12 Carbon Filter. I also have a variable fan controller on the in-line fan. I run mine at about half power.

>What do you have your plant in? Planter and soil on the bottom of bucket ect?

I use a 5g nursery pot. For my next grow I will be switching to a smart pot to avoid it getting rootbound.

>I was thinking of extending a 5g bucket under the brute can so the soil is under the setup and the plant itself is in the brute only allowing more space to grow.

If you're gonna do that you're better off getting one of those 5g DWC setups. With that said, I'd advise against doing that. Reason being is you add another layer of complexity in that you have to figure out how to support the brute and you run risks with light leaks. This also puts the brute much higher than you are which can make servicing/watering awkward.

I just have mine sitting on the bottom of the bucket in the pot. The newer style Brutes cause you to lose a few inches but if you can budget to buy two of them and use one as a spacer, it works well.

>Would that work or would I have an issue with temperature difference between roots and plant?

I am not experienced enough to say yay or nay but I doubt it?

u/Lentspark · 1 pointr/microgrowery

I appreciate your input, I will be making some changes soon. Trying to keep it easy on the wallet, do you think a 240CFM fan would work for cooling the bulb?

u/MAWeedThrowaway · 3 pointsr/SpaceBuckets

Thank you for the response.

Suppose I do this:

  1. 18 gallon plastic tote

  2. 4" inline fan with carbon filter and speed controller

    Then of course Lighting, etc, etc.

    Now let's suppose I had one, maybe two plants, flowering in the corner of my basement. Would a visitor to my house, who was also in the basement, be able to smell it?

    Thanks again for your response.

u/freshmutz · 5 pointsr/HomeImprovement

I have 2 of these installed in my house:

Panasonic FV-20NLF1 WhisperLine 240 CFM In-Line Fan, 6-Inch Duct https://www.amazon.com/dp/B000EDUIX2/ref=cm_sw_r_cp_api_qXhdAb0376KVX

They are awesome! We had a roofing company come out and install roof vents, and the flapper is contained in them, not the fan itself. The in-line fans are much quieter than a fan with the motor installed at ceiling level. And they are easier to install in my opinion since they just have to be screwed up to attic rafters.

u/a2lolo · 1 pointr/microgrowery

Okay! Do you think something like this would do the trick?
https://www.amazon.com/VIVOSUN-Inline-Variable-Speed-Controller/dp/B01CTM0JF2/ref=sr_1_9?ie=UTF8&qid=1482559818&sr=8-9&keywords=inline%2Bfan&th=1
Part of me wants to cheap out and get the 4inch version but I don't wanna try and save 10 bucks and end up with something that won't be able to get the job done.

u/DiYRDWC · 1 pointr/cannabiscultivation

https://www.amazon.com/AC-Infinity-CLOUDLINE-T6-Thermostat/dp/B074XBXFPD/ref=mp_s_a_1_1?keywords=ac+infinity+cloudline+t6&qid=1564022544&s=gateway&sprefix=ac+inf&sr=8-1

I have a T6 and a T4 with the manual speed contoller, dead quiet even at mid high speeds and it moves a ton of air. Love both of them, mine hang on bungee cords to absorb any vibrations.

The fancy controller will spin up the fan speed relative to a temperature set point and possibly humidity. Just make sure to set the fan speed to the maximum in manual mode before you set it to auto, if you dont and the fan needs to ramp up to a speed higher than the level set in manual mode it will supposedly lock out, and that was part of the reason I opted for the manual controller.

That said I did my reasearch 5-6 months back, they may have fixed the issue, and it also did not seem many people were effected by the issue, so the fix of setting the fan speed to max before setting it to auto may work.

u/SadPandaPantss · 1 pointr/microgrowery

2x https://www.amazon.com/gp/product/B005KMTYFK/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1 : One on bottom for intake, one on top for exhaust.

2x https://www.amazon.com/gp/product/B00INM0750/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 : This MAY be a little too much. There have been a few times where I thought I was getting light burn symptoms, but I just kept moving the light closer to the top of the tent (an inch or two off the roof now)

Other than that its FoxFarms Ocean Forest soil and HyrdoOrganics nutrients. I got the whole line but don't necessarily follow their schedule, I just use things as deficiencies pop up.

I have gotten that red streak in most of the grows I have done. I think is high in phosphate? It's been a while since I have read much into it but I believe as long as the whole stem isn't red, things should be fine. I know the plant turning purple is genetic, but it also depends on temperatures. My tent gets a little cool at night so that may have something to do with it too?

u/TheEntosaur · 1 pointr/microgrowery

For computer fans, you could always use a 12v->DC adapter. I found mine on NewEgg last.

For around the same price or cheaper (especially per CFM) something like this works great.

u/enis_with_a_p · 1 pointr/microgrowery

I have a 2x4x6, I use this. It works great.

AC Infinity CLOUDLINE T4, Quiet 4" Inline Duct Fan with Temperature Humidity Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics https://smile.amazon.com/dp/B06ZXWN3BG/ref=cm_sw_r_cp_apa_i_RGvKDbVQK4W9S

u/plaskbar · 1 pointr/microgrowery

pretty good combo as mentioned in the starter shopping list

Don't have one to myself, i use a very good version of these constructions

You have to look after the cfm

u/neonsaber · 1 pointr/SpaceBuckets

Shopping list;

AmazonBasics 6-Outlet Surge Protector Power Strip, 6-Foot Long Cord, 790 Joule - White https://www.amazon.ca/dp/B00TP1C1UC/ref=cm_sw_r_sms_apa_i_H4B1DbVABEKV0


VIVOSUN 4 inch Inline Duct Booster Fan 100 CFM, Extreme Low Noise & Extra Long 5.5' Grounded Power Cord https://www.amazon.ca/dp/B01C82SYZ0/ref=cm_sw_r_sms_apa_i_33B1DbZQFHVBT



VIVOSUN 4 Inch Air Carbon Filter Odor Control with Australia Virgin Charcoal for Inline Fan Pre-Filter Included https://www.amazon.ca/dp/B01DXYMBU6/ref=cm_sw_r_sms_apa_i_D3B1DbXZRD3RS


Hydrofarm TM01015D Dual Outlet Grounded Timer https://www.amazon.ca/dp/B001Q1FZWA/ref=cm_sw_r_sms_apa_i_.2B1Db0WE33FY



LED Lights Strip 5M 5050 SMD Waterproof 150LEDs RGB Color Changing Flexible LED Light Strip Kit https://www.amazon.ca/dp/B07B5Z2Y34/ref=cm_sw_r_sms_apa_i_H2B1Db47ZRW0K



COB LED Grow Light, Niello Full Spectrum Grow Lights for Indoor Plants, Higher Light-Gathering, Space Saving and Easy to Install, Professional Greenhouse Hydroponic Indoor Plants(150W) https://www.amazon.ca/dp/B07DJ5WZQD/ref=cm_sw_r_sms_apa_i_M0B1DbJMFAJ20



Not included; tin tape, duct tape, 2" curved pvc tubes x3, zip ties, hot glue, and the Rubbermaid wheeled bin + lid.

u/GunPriestWolfwood · 1 pointr/microgrowery

Going to be in a small ish closet in a room thats partially underground. I live in west side washington state if that gives you a general sense of climate, roughly 60 F ambient temp inside said room. It has a window that can be opened for fresh air, average temp in the summer is about 70F. If i run [this fan from amazon] (http://www.amazon.com/gp/aw/d/B005KMOJPK/ref=mp_s_a_1_1?qid=1458783951&sr=8-1&pi=SY200_QL40&keywords=50+CFM+inline+fan&dpPl=1&dpID=51xL2qyZJAL&ref=plSrch) with the fan control in the frequently bought together section below will that give me the range of speeds i need?

u/LANBoy91386 · 1 pointr/cannabiscultivation

I've run a 1000w light and cool tube without cooling it before and suffered no ill effect. I adjust the amount of airflow based on the target temp of the room the lights are in.

4 x 8 tent with two 1000w lights will need 700 - 800 CFM but this still raises ambient temp by 10 degrees Fahrenheit.

Ducting distance also plays a large part in the fan you purchase. If you're just pushing air over the light to lower its operating temp this should do it for both lights.

https://www.amazon.com/VenTech-VT-DF-6-DF6-Duct/dp/B005KMTYFK/ref=sr_1_3?ie=UTF8&qid=1468265570&sr=8-3&keywords=6+inch+inline+fan

If you are taking the heat out of the room and are running anything close to 20 ft of tube use a fan like this

https://www.amazon.com/Hurricane-435-CFM-Inline-6-Inch/dp/B006Z1JLY4/ref=sr_1_9?ie=UTF8&qid=1468265570&sr=8-9&keywords=6+inch+inline+fan

u/shadow_moose · 2 pointsr/microgrowery

I have a similarly sized tent and I use this fan with this speed controller. It seems to provide very good suction and the controller does not cause the fan to hum or anything. I estimate 10+ full air cycles per minute with this thing going at full blast. I'm running a Mars 600 and a home built 240W COB setup to supplement, pulls about 500W at the wall and my tent is at about 75 F with 60% humidity. Intake air is about 62 F right now.

I would always go 6 inch, simply because that gives you the option to run the fan at 50% power and still get more CFM than you would with a 4 inch.

One thing to consider is the cost of carbon filters if you're worried about smell. My neighbors don't care so I vent outside, but a 6 inch carbon filter will cost at least $50 more than the 4 inch equivalent. Granted they can move more air and will last longer, but still certainly something to consider.

u/brock_lee · 1 pointr/DIY

I did something similar. I used PVC rather than aluminum because it was cheaper. I also installed an inline fan closer to the gable, which I wired with the ceiling van, and it helps a lot with the fan trying to push air that far. I have had zero issues with ice buildup on the outside vent.

https://www.amazon.com/VIVOSUN-Inline-Booster-Noise-Grounded/dp/B01C82SYZ0

u/AidsRain · 3 pointsr/microgrowery

I don't know very much about those booster fans. I have never used one but i have heard that they are not very powerful. I would try to get something like this one. The carbon filter you linked looks good though.

u/LazyGrower · 1 pointr/microgrowery

I was typing up my list of shit for my second grow. Lets see if I got my Reddit Formatting Correct. :)

The Details

Seeds

u/kratomthrowaway22 · 2 pointsr/microgrowery

Hi, I would appreciate some critical feedback and suggestions regarding the setup I have in mind for a new grow tent, specifically related to ventilation. So far I have concluded that a 3'x1.7'x5' grow tent is the right size for my space (a spare bathroom), and towards that end I have purchased this tent and a 400W cool tube lamp.

For ventilation, what I am envisioning based on my research is a two fan setup: a 6" inline duct fan to cool the lamp (like this one) and a 4" inline duct fan with a carbon scrubber to exhaust the tent (like this one), presumably with speed controllers for each.

Again, this is going in a bathroom where I plan to hijack the existing ceiling exhaust ducting that leads outdoors. Thus I will need to couple the two fans from the lamp and the tent exhaust and plumb it into the ceiling.

Does this seem reasonable and appropriate? I am having a hard time picturing exactly how the carbon filter works - can I put it inline with ducting as I have drawn, or does the business end of the filter go inside the tent?

u/lampchairdesk · 2 pointsr/cannabiscultivation

I agree Mars Hydro is a great tent for a great price, you could get a vivosun if you want to save 35$ or a gorilla tent if you want to spend 335$ extra but I would go with the Mars Hydro.
Light Spider Farmer
exhaust AC Infinity
Humidifier TaoTronics

u/ayn-ahuasca · 1 pointr/HVAC

I used one of these: http://www.amazon.com/Panasonic-FV-20NLF1-WhisperLine-In-Line-6-Inch/dp/B000EDUIX2

Placed in basement utility room. Intake of duct fan comes from the output side of the 3rd floor system. Output of duct fan blows to a register in basement.

So when I turn this fan on it turns over the air from all three floors. In the winter we heat with a wood-burning stove on the basement level so this helps keep everything stable. In the shoulder seasons where we have only light cooling needs, it lets us only run cooling only on the third floor and the other floors balance out. In summer we run both ACs.

u/johnnychronicseed · 1 pointr/microgrowery

UPDATE:

Stopped in at my 2 local grow stores and holy markup batman. One of the stores took out and showed me a Can-Fan HO 6" (Best fan they have according to the grow store guys at both stores...) and truthfully I think my cheap ass ventech fan is better quality...

But the best part is one store wanted $190 for the can fan while the other was asking $230 FOR THE SAME FAN that sells on Amazon for $130 talk about freaking markup.

I really wanted to give my local grow shops some coin but not with the crazy inflated prices and limited selection... Oh yeah both grow stores quoted me Prices for the Vortex S-Line 6" as well. One store was somewhat close at $230 but the other one wanted $310 for the damn thing that growershouse.com sells for $183 with free shipping.

Anyways just needed to vent about the ridiculous prices and that I found and my thoughts on the can-fan HO. Be sure to price check everything you buy at a grow store (other than soil prices seem standard) or you will most likely get ripped the fuck off...

u/FluffyMuffy69 · 1 pointr/microgrowery

So, as is surely obvious, I'm completely new. I just set up my tent, which is 2x4x5'

I purchased a mars 600w LED, a charcoal filter and two of these fans

VIVOSUN 6 Inch 440 CFM Duct Inline Fan with Variable Speed Controller

I just opened one of the fans and it is ridiculously huge. The reason I chose that one was it seemed to fit the holes n my tent. Which is

vivosun tent

Is this total overkill? Will it work? Ack. I don't want to have to mess with an exchange unless necessary.

u/blindin1i · 1 pointr/microgrowery

Ok how about this one? I could get two if needed and still be around 100 bucks with this grow tent. Then I just need the light and I'm golden. Actually won't even really need the light until I'm ready to flower, as I think I have enough light power now for a solid veg.

u/lobster_roll18 · 2 pointsr/microgrowery

Thanks! I used this fan with this speed controller, but i found the speed controller only worked over a very small range on the dial. I will likely replace the fan when I automate it with a Rapsberry Pi controller.

u/THROWAWAY_ME_YOUR_PM · 2 pointsr/microgrowery

They were bundled together as a combo and are featured constantly in the Starter Shopping guides on this sub's sidebar. I sure fucking hope they're correct for each other.

Edit: This combo

u/Arkanian410 · 6 pointsr/homelab

It’s easier (and cheaper) to suck heat out of a room than to forcefully cool it off.

I’m in the south as well. In the summer I siphon out hot air to an outdoor soffit exhaust vent. In the winter I can suck cold air from the other side of the house to dump in the lab room. Speed controlled by thermostat. Great system for the last 7 months.

AC Infinity CLOUDLINE T4, Quiet 4” Inline Duct Fan with Thermostat Speed Control - Ventilation Fan Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics https://www.amazon.com/dp/B06ZXWN3BG/ref=cm_sw_r_cp_api_Z712Ab7NAG406

u/Obviously_Throwaway4 · 1 pointr/microgrowery

thats good to hear. id heard flirs on helicopter could see heat spikes through walls. do you happen to know how well this type of filter will handle smell?

http://www.amazon.com/Hydroponics-Inline-Scrubber-Carbon-Filter/dp/B004Q2ER5C/ref=sr_1_1?s=hi&ie=UTF8&qid=1349241681&sr=1-1&keywords=4%22+inline+fan+combo

u/EnigmaGrows · 1 pointr/microgrowery

An intake fan will double as an outtake fan depending on the way you face it. You can use two intake fans and use one of them to suck the hot air inside the top of the tent and blow it out of the tent with another fan to pull air from outside and blow it into your tent or you can do it how I do it.

Most tents have velcro flaps that pull up with mesh screens on them to act as air vents. If you have your tent near a wall I open the flap close to the wall that way it is shaded so I don’t have worry about light leaking through it. Then I use one intake fan inside my tent and I duct it out of the tent and out my window. All other intakes are sealed but one or two air vents that are shaded from light.

This creates a negative pressure in your tent. The hot air has no where else to go but through your fan and out of the tent and then the air from the room your tent is in is being drawn in from your passive air vent.

Almost all tents have these vents located in multiple spots for this. Ideally you will only need to buy one fan for your tent.

EDIT: something like this and some 6in ducting with a few rope clip hangers from amazon and you’re all set

u/opperior · 1 pointr/3Dprinting

Is that duct fan this one: https://www.amazon.com/VIVOSUN-Inline-Booster-Noise-Grounded/dp/B01C82SYZ0/ ? If so, I'm curious to know if it works with the filter. I almost got it, but the product descriptions says it's not for use with a carbon filter, so I thought it might not have enough pressure to push air through the filter. If it works, though, it is certainly a lot cheaper than the high-powered fans.

u/thatsnotmybike · 2 pointsr/microgrowery

You want a centrifugal or a "mixed flow" fan, with the latter being supposedly quieter. I just ordered one of these to replace my pair of cheapo axial fans: Can Max Mixed Flow 6" 334cfm

None of these fans are silent by any means. The cheap axial fans are the loudest in my experience.

Paired with a speed controller, carbon filter and insulated ducting, the centrifugal fan cooling my lights is fairly bearable.

u/Zatch_Gaspifianaski · 1 pointr/microgrowery

1 in a 3 or 5 gallon pot.

I think it's going to get really hot if all you have is pc fans though. My veg tent is very similar to yours except I have a fan and filter running 24/7 and it still gets pretty warm.

u/imaroughgem · 2 pointsr/microgrowery

>https://www.amazon.com/dp/B074XBXFPD/ref=cm\_sw\_r\_sms\_apa\_i\_sPdVDbC26EA27

Are these really that much quieter? I have a vivosun inline fan with a speed controller, and have been looking at these, hoping they run quieter.

u/everythingerased · 1 pointr/Blacksmith

Thank you very much, I think I will go with the brake drum forge. I found a decent set of instructions here: http://www.instructables.com/id/Brake-drum-blacksmithing-forge/?ALLSTEPS, although I still might use fire bricks instead of the cement ones they used. I don't know much about centrifuge fans, and google wasn't especially helpful, do you think this centrifuge fan would be adequate? http://www.amazon.com/VenTech-IF4-Inline-Duct-Fan/dp/B005KMOJPK/ref=sr_1_3?ie=UTF8&qid=1409761541&sr=8-3&keywords=centrifugal+fan

Thanks again for your insight

u/TheTrixsta · 6 pointsr/SpaceBuckets

I second this. This is what I use to filter my 3x3 tent.

All-Filters CP-6005 Cut to Fit Carbon Pad for Air Purifiers https://www.amazon.com/dp/B000U204W2/ref=cm_sw_r_cp_apa_ypR-Bb4QTMBKY

VIVOSUN 4 inch Inline Duct Booster Fan 100 CFM, Low Noise & Extra Long 5.5' Grounded Power Cord https://www.amazon.com/dp/B01C82SYZ0/ref=cm_sw_r_cp_apa_uqR-Bb4D3ADEY

And just used a hose clamp to clamp a piece of the carbon filter over the intake of the fan. So it sucks air from the tent outside. Keeps my tent at perfect temps and scrubs smell.

u/Loafer75 · 1 pointr/GrowingMarijuana

You can get a Vivosun inline 4" fan for like $25...

inline fan

u/Environmental_Act · 1 pointr/microgrowery

AC Infinity CLOUDLINE T4, Quiet 4" Inline Duct Fan with Temperature Humidity Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics https://www.amazon.com/dp/B06ZXWN3BG/ref=cm_sw_r_cp_api_i_HftGDbW1BANDX

iPower GLFILT4M 4 Inch Air Carbon Filter Hydroponics Indoor Plants Grow Tent Odor Control Scrubber with Australia Virgin Charcoal for Inline Fan, Reversible Flange, Prefilter https://www.amazon.com/dp/B00E582DV2/ref=cm_sw_r_cp_api_i_bktGDb9PQSKM7

u/groregon · 1 pointr/SpaceBuckets

So that isn't an inline fan, that is known as a duct booster. It's just meant to help keep air moving through ducts. You'll need a real inline fan with speed controller. http://www.amazon.com/Apollo-Horticulture-Inline-Variable-Controller/dp/B019INGAO4/ref=sr_1_3?ie=UTF8&qid=1464883260&sr=8-3&keywords=4+inch+inline+fan

u/ranger737 · 10 pointsr/SpaceBuckets

Sure:

u/no-mad · 1 pointr/microgrowery

$30 wont do much. If you are serious you need something like this.amazon fan carbon filter combo

u/ClosetCaseGrowSpace · 0 pointsr/microgrowery

This Hydrofarm Active Air is the one you want. No bells. No whistles. Super well-built.

u/SelppinEvolI · 2 pointsr/microgrowery

I don't know about fan speed controllers, depends on your fan I guess. The fans I purchased had speed controllers with them.

I use these ones, they are a little more pricey, but they have a speed controller that you can set to on all the time, or set to turn on at certain temps. Plus they are quiet;

4" https://www.amazon.ca/AC-Infinity-CLOUDLINE-T4-Ventilation/dp/B06ZXWN3BG/ref=sr_1_3?ie=UTF8&qid=1539294592&sr=8-3&keywords=ac+cloudline

6" https://www.amazon.ca/AC-Infinity-CLOUDLINE-T6-Ventilation/dp/B074XBXFPD/ref=sr_1_1?ie=UTF8&qid=1539294592&sr=8-1&keywords=ac+cloudline&dpID=41svLNXomyL&preST=_SY300_QL70_&dpSrc=srch

u/triomicron · 2 pointsr/OKmarijuana

https://camelcamelcamel.com/AC-Infinity-CLOUDLINE-T6-Thermostat/product/B074XBXFPD?context=search

Looks like the lowest it's been new on amazon was $119 and used was $110. I plan on getting the one shown that includes the controller and another stand-alone which they say will be available at the end of this year.

edit: looks like op is talking about the S6 and we are thinking T6.

u/Kingryche · 1 pointr/microgrowery

That type of fan, even 2 in series, is holding you back on your exhaust capabilities. They just don't work well against a load. This is my setup, again- cooling 400W HPS. It will be louder, but it will not be hampered by the load of a carbon filter.

You can find any number of comparable fans to this one for much less than an a/c unit. Might be worth trying before shelling out for the a/c?

u/IsthatweedIsmell · 2 pointsr/microgrowery

Depends on the strain and the temperatures in the tent. Most likely there will be smell even with a small grow. I have a friend that has a box in his basement and uses one of these fans to pull air through a 14 inch carbon filter 24/7. With one plant and a 150 HPS it get extremely smelly w/o the filter.

u/user865865 · 2 pointsr/microgrowery

Here's my [Speed controller for fan.] (https://www.amazon.com/gp/product/B006NGI2RS/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1) This was definitely overkill, I just didn't trust cheaper voltage regulators, plus I can and have used it for other things. Pretty well made, works great, it was only like $70-$80 when I got it though.

This was my other option, but obviously I can't vouch for it.

EDIT: I'm not an electrician so I may have been unnecessarily worried, and even now I am not 100% clear with all the mixed reviews and info around fans and speed controllers.

u/quaxon · 1 pointr/engineering

Yea, this one didnt come with any documentation or wiring diagrams and I've searched all over the internet but can't find anything.

Here is the fan in question

http://www.amazon.com/gp/product/B003YFADW8

u/fear_the_reefa · 1 pointr/microgrowery

Hm that makes sense. I got the one that's recommended in the starter guides. this one

The duct work isn't very long. Only a few feet after the fan. I'd rather not extend it much for space reasons, and also I think it would reduce air flow to have more length.

u/entrpn · 2 pointsr/microgrowery

Honestly, don't bother with this project and instead get something like this; its almost the same price you would spend on a power supply. If you use it as an exhaust fan and you have an infan hole in your cabinet, it will just suck the air from the outside without needing another fan.

u/forgottenwoden · 2 pointsr/microgrowery

Yeah I've checked the link and bookmarked it for referential material. [This combo] (http://www.amazon.com/Hydroponics-Inline-Scrubber-Carbon-Filter/dp/B004Q2ER5C/ref=pd_sbs_lg_2) looks good but I'm having problems discerning the true dimensions of it to factor into my space :S