(Part 2) Reddit mentions: The best household ventilation fans

This is my first time growing, so please feel free to critique/rip into my setup, as I really appreciate all the help and knowledge! I actually ordered my seeds from JAHseeds a year ago, but never got my shit together enough to actually do anything with them.

 

I do want to take a quick moment to thank u/AFK_ing for the seeds first, as they were actually gifted to me for free. I placed an order on a whim one night, and then completely forgot about it. Turns out that JAHseeds never ended up depositing the interac transfer I sent them, so it inevitably expired. I had forgotten about the order completely, when out of the blue one day I received a letter in the mail complete with 12 free seeds and a handwritten 'apology' letter. This absolutely floored me, and left me feeling super warm and fuzzy inside. I've been cherishing the seeds up until now, so I'm really really happy that I can finally bring them to life :) Anyways....thank you JAHseeds!

 

Onto the setup! Currently running:

 

2x alibaba 240w QB

 

Promix HP + 2inch layer of worm castings on the bottom

 

Strain is The Best My seeds are not feminized however, so still unsure of sex.

 

Right now they are in 1 gallon pots and I'm planning on moving them into 7 gallon fabric pots when the time is right.

 

I kinda went ham one night and bought the entire GH nutrient lineup (including all the additives....) so I'm planning on sticking to their schedule (halved) throughout the grow. I know I could have done without a lot (most) of them, but yeah it was still cheaper than buying an Oz from the LP....Currently only feeding them water.

 

The tent is a GA 48x48x80, with a Vivosun 6 inch duct fan and carbon filter

 

Holmes Lil' Blizzard fan (this thing moves a lot of air)

 

I originally had a smaller tent so I started out germinating 3 seeds by dropping them in a glass of water for 36 hours. After they all popped, I planted them directly into coco pots. At that time I decided to change to a larger tent, so I dropped 2 more seeds into a glass of water to germinate. 36 hours later one of the seeds had popped, but not the other. I planted the one that popped, and left the other in the water for another 12 hours. At this time it still hadn't popped, so I just dropped it into a pot with the others. The one that never popped didnt end up coming through the soil until about 2 days ago (I was actually just about to give up on it). It's the tiny coco pot in the middle. Pretty sure it's gonna be a retard plant but whatever, I'll give it some love and care. Don't tell Justin. The nice healthy plant on the bottom right is the other seed that I germinated with it at the same time.


 

 

Close up shot 1

Close up shot 2



 

 

 

 

tl;dr i love you all

I own both a gen 4 and a gen 5 FSL hobby laser, and I really like them both. There's a decent community forum here:

http://fslusers.freeforums.org/

You'll get some good answers there.

For 1), I don't know; I don't have their exhaust fan. They didn't have it available when I bought mine, but it looks decent enough. Without seeing it in person I can't comment on if it's worth $200 or not, but I use this one on one of my lasers: http://www.amazon.com/gp/product/B000O8D0IC?psc=1&redirect=true&ref_=oh_aui_search_detailpage and it's loud but works well. On my other I use this one: http://www.amazon.com/gp/product/B005XNNYMU?psc=1&redirect=true&ref_=oh_aui_search_detailpage and it's much quieter and also works very well. Granted my ducting is 6" to match, but I like it.

For 2), what diameter items? I got my rotary for free from some promotion/preorder/I can't remember and I actually have barely used it. It's hard to fit into the machine, as it raises items up off the floor of the laser, and there isn't much vertical height left over. I'd estimate you could only do roughly 1/2" diameter stuff without removing the floor of the laser (which isn't hard), but even then you'll likely only get to 1" or so. You'd need to remove the floor and set it up on something to get anything bigger. The removable floor is pretty nice; I took mine out and haven't looked back.

For 3), I can't comment on the cost of the 45W tube, as I didn't get one with mine, but I don't see it being worth it. You can get a whole second tube from LightObject for less than the cost of "upgrading" that first tube: http://www.lightobject.com/SP-35W-CO2-Sealed-Laser-Tube-for-Small-K40-laser-engraving-machine-P208.aspx Note that, despite being labeled as a "40W" laser, most of these small machines are actually about 30-32W. 40W refers to the peak pulse power when starting up; it's not a continuous run rating.

As far as compressors go, I haven't ever run without one. It helps TREMENDOUSLY when vector cutting and helps a LOT to keep your lens clean. Their compressor is OK but it's a bit pricey; I'd look around and see if I could find a continuous-duty-rated compressor for cheaper than that.

Don't get their water chillers either. The $600 one is just a radiator and a fan, and won't chill your water much. You get WAY more bang for your buck from a 5 gallon bucket. If you run it for a long time, freeze gallon jugs of water and put them in the bucket. I've run 100% power vector cutting jobs for 2 hours at a time with a gallon of ice in there, and it's just about right. You might need another half gallon; it's been a while since I've used that method. Their "Advanced chiller" looks decent, but it's WAY overpriced. An equivalent unit from here: http://www.vminnovations.com/search/index.html?q=AACH25 is $425 for a brand new one, and less than $300 for a refurb, and it's actually a refrigerant based unit. I installed an 80W tube in mine (not their official kit) and use that chiller and it works great.

Last, don't get their 90W upgrade kit either unless you have a REALLY good reason to. A tube and PSU cost around $1100, so you're paying nearly $2000 for brackets and a wiring harness. It's just not a good value, but then again installing your own 80W tube isn't exactly a walk in the park if you don't have some fabrication tools handy.

I hope that helps. For what it's worth I really like my lasers and they have served me well. If I get another laser it'll probably be a direct import from GWeike, but that's only because I've been using the FSL lasers for so long and have learned a TON from them.

VIVOSUN 48"x24"x60" Mylar Hydroponic Grow Tent with Observation Window and Floor Tray for Indoor Plant Growing 2'x4' https://www.amazon.com/dp/B01DXYMQ9M/ref=cm_sw_r_cp_api_i_dx13BbGGT8164

VIPARSPECTRA Reflector-Series 300W LED Grow Light Full Spectrum for Indoor Plants Veg and Flower https://www.amazon.com/dp/B01B4GQ6MO/ref=cm_sw_r_cp_api_i_Hz13BbPVVN2TK

This light is good for 2 plants but you’ll eventually want to add a second for your tent. You definitely can’t fill the tent with just this light, but it’ll get you started.

iPower 2-Pack 1/8 Inch 8-Feet Long Adjustable Heavy Duty Rope Clip Hanger, Reinforced Metal Internal Gears,150lb Capacity https://www.amazon.com/dp/B018WIOEDA/ref=cm_sw_r_cp_api_i_wA13Bb58ZJ5GD

Century 7 Day Heavy Duty Digital Programmable Timer - Dual Outlet (Indoor) https://www.amazon.com/dp/B00MVF16JG/ref=cm_sw_r_cp_api_i_XA13Bb9NQJDG1

Comfort Zone CZ6C 6-Inch 2-Speed Clip-On Fan (White, 2 Fans) https://www.amazon.com/dp/B00JLUZSPC/ref=cm_sw_r_cp_api_i_.E13Bb05JK7B1

247Garden 5-Pack 3 Gallon Grow Bags/Aeration Fabric Pots w/Handles (Black) https://www.amazon.com/dp/B013JM3JAI/ref=cm_sw_r_cp_api_i_VG13Bb7MGJS2R

https://www.oregonsonly.com/samples/

These are great nutrients and basically foolproof. This free sample kit will get you through 4 plants full grows. I love these nutrients and even now use them in a reservoir (which people claim you can’t do but works great).

Dr.meter 0.1pH PH002 High Accuracy pH Meter/pH Pen Tester with ATC LCD 0-14 pH Measurement Range (PH002 pH Meter for Water) https://www.amazon.com/dp/B00PU0W35K/ref=cm_sw_r_cp_api_i_fI13BbNRES1BK

That will get you started on your first grow or two. I recommend auto blue mystic from nirvana for your first run. They are very low smell while growing so you can get by without a carbon filter. They’re autos so you can leave the light on 24/7, and they finish fast. Also turns out a great finished product.

https://www.nirvanashop.com/marijuana-seeds/815-blue-mystic-autoflower.html

Less than $40 for 5 seeds and very discrete shipping.

When you have a bit more $ you can add on additional items. Eventually you’ll want to upgrade to PFD sun boards or quantum boards, but you’ll probably want to get a fan and filter first:

6" Inline Fan - 395 CFM Exhaust Duct Fan, Built-In Speed Controller, ETL Listed, Pre-Wired 6 FT Grounded Cord - Great Use In Grow Tent With Carbon Filters, Light Fixtures, Intake. Fits 6 Inch Ducts. https://www.amazon.com/dp/B01L0D0UEQ/ref=cm_sw_r_cp_api_i_TM13Bb5170NC1

Activated Charcoal Carbon Filter 6" x 16", Up to 400 CFM, Premium Grow Tent Odor Scrubber, 1.8" Extra Thick Layer of Top Grade Activated Australian Virgin Charcoal-Great for Hydroponics and Growing https://www.amazon.com/dp/B01M0VN4I5/ref=cm_sw_r_cp_api_i_qN13BbEH9AG9W

Maybe you can upgrade to a 2x4 tray with reservoir so you can automate feeding.

If you don’t want autoflowers you can just do 12/12 from seed for faster harvest. https://www.royalqueenseeds.com/blog-how-to-grow-cannabis-from-seed-under-12-12-lighting-n330

But I really recommend doing the auto blue mystic for your first round or two.

Hey, I JUST came off building a setup and it cost me $750 total. We have 3 plants in there right now. I have the entire list with amazon links or store suggestions.

Item| Price | Where To Buy
---|---|----
Tent| $95| We bought this one, I don't know if it's worth spending a lot on anything more expensive. For a smaller option I just got a second with good reviews but can't vouch for it yet.
Lights/Hood/Ballast| $140| I got the 600W set, but 400W would make cooling MUCH easier and still get a big yield. For LEDs at similar price, Viparspectra 300W x2 or a single 600W eliminates need for extra cooling potentially (not included here, we used fans from around the house)
ph Test+Control Kit | $25| GET THIS. The water must be pH'd properly for your babies' health.
Cloth Pots| $20 | These are better for aeration, water flow, training, etc. Cheap and reusable too.
Nutrients | $50 | I got the Fox Farms Trio, but there are many good options out there.
Fan + Filter | $150 | This is huge and might be overkill for you. Make sure whatever you get fits your tent vents (This one fits the Apollo tent above with 6" vents).
Ducting | $20 | Connect fan to filter, to tent, to wherever. Might want multiple sizes, check tent vent sizes.
Foil Tape, Metallic | $10 | Here. Metal Duct tape is best duct tape.
Fan Speed Controller | $20 | Useful for if you do get a fan that is slightly overkill!
Fox Farms Ocean Forest | $15 - $40 | You can buy it online and I did for my first 3 bags....then I found it in a local store for $15. There is some controversy with FF lately, it's not organic FYI. There are tutorials on making your own soil if you care, but I like this because I didn't have to use nutes for 3-4 weeks.
Humidifier | $30 | This is the exact one I have. We're in winter so I need it to keep humidity up, you may not.
Dehumidifier | $40 | There are plenty for this much. You may not need this either.
Cal-Mag | $20 | I haven't needed it yet but it's best to have on hand if you do!
Seeds | $75 | I bought from Attitude, chose stealth, and bought like 15 seeds?, so it was expensive. You can get seeds for less.
Jiffy Pellets | $10 | Used to start seeds. There are other options.
Total | $745 | If you buy all this stuff, you have potentially even more than you need to get started, with room for 3-4x more plants than these boxes, and with nutrients to last you for a long long time!

Hope this helps! I'd hate to see you drop so much on it when you don't need to at all.

Solid research so far. Yeah, don't buy a blurple. You picked out good lights from Alibaba and Vivosun makes good tents. Most indoor growers in most climates need a dehumidifier. You can wait to see what your RH does once your plants are vegged out before you drop money on one if you like. But you should budget a couple hundred bucks for a good quality 70 pint dehumidifier because you will probably need one. You may also need an AC unit if you don't already have that. You may need a humidifier. As far as the choice between the 4x4 or 5x5- Don't forget to take available power into consideration. Lights, dehumidifiers and air conditioners all draw a lot of power. You might need multiple circuits to power all of that.

Active Air makes a 6" blower that is head-and-shoulders above the plastic Vivosun and Ipower blowers.

You are off to a good start with GH Flora Trio and Fox Farms soil. I'd suggest you add CaliMagic, Armour Si, and Grower's Recharge to your shopping list.

I would do four plants in 7 gallon pots for a first run. That will work in a 4x4 or 5x5.

Unassembled QBs can be a little intimidating if you have no electrical experience. If you hook something up wrong and turn it on, you can instantly fry it. I don't have any experience with the pre-assembled ones, but it sounds like a safer option.

Auto-flowers are fantastic in certain circumstances, but I'm not sure that they're right for you. I would go with photo-period plants. You have more control, you can do more training, you can recover from mistakes in veg, and you can veg your plants right to the limit before flipping to get a great yield.

$1000 is not a large budget for a well equipped 4x4. $1500 is more realistic, TBH. Climate control equipment is pricey, then you get nickel-dimed by your meters, fans, chemicals, sprayers, pots, etc. Just keeping it real. Where I live weed cost $350/ounce. I made my investment back X 2 on my first grow. Good luck!

You could do the bath fan idea but with a much more powerful fan. Something like this that vents from the top floor to the outside, in combination with some opened windows, would probably help quite a bit -- as long as there is cool (and not too humid for your tastes) night time air available, and you don't mind leaving windows open for hours. But it's kind of a hack, and if you could tweak your existing ducts to work better, that would be more ideal and wouldn't require messing with windows and whatnot every night.

Use cases:

• Calgon take me away (set mood lighting for a good soak)
  
• Visiting guests? Kids sleepover? Set the light as a night light so they can easily find the bathroom in the night in their unfamiliar setting
  
• Halloween? Use that app that makes the lights flash and change colors to sound effects.
  
• Christmas? Other hollidays? See Halloween.
  
• Did your squatty potty help you drop an immense bomb? Set the lighting to red to warn people the bathroom is unsafe to enter.
  
• Have a Nest Protect? Make all the lights flash red Make all the lights flash red then white then red then white when the smoke alarm goes off.
  
• Kids failing to do their chores of cleaning the bathroom and taking out the trash? Set the lights to yellow to warn them to get on it.
  
• Have an Amazon Echo? Turn your bathroom lights on and off with your voice.
  
• From /u/giggeywidit92 shower timer
  
  Note: This is a frivolous use of lighting and unnecessary but fun. I really like having the Phillips Hue lighting in my bathroom. I light telling Alexa to turn the lights on and off. However, others in the house still use the light swtich which reverts the lighting to white. I'm going to have to put an Phillips Hue Tap or dimmer in the bathroom with several presets to really make this work as intended.
  
  >I did this two months ago and have not had a problem. Why have a hue light in the bathroom? Makes a great way to subtly illuminate the bathroom when guests are visiting. Need Calgon to take you away? So much better in a soft blue light! Feeling Halloween? Redrum. Redrum! Source
  
  >>My comment on this thread from two months ago: https://www.reddit.com/r/Hue/comments/4wz5fn/hue_lights_in_a_bathroom/d6b9an1
  
  >> I just installed a Broan 744 recessed ceiling fan in the bathroom this weekend (me: https://flic.kr/p/KVpWxp). The instructions specifically said "Use R30, BR30, PAR30L, or PAR30LN lamps only (75W Max). For wet locations (tub or shower) - use PAR30L or PAR30LN (75W Max.) lamp only."
  
  >> So, I'm not sure why you would have a recessed exhaust fan in a non-wet location (kitchen perhaps?) but I disregarded the warning and put a Philips Hue BR30 in the can (pun intended). The kids love setting colors for their bath/showers and so far I haven't had any issues. Then again, we've had it operational for 2 days.
  
  >> I could find no good reason to limit myself to a PAR30 based on reading like this: http://www.conservationmart.com/blog/index.php/understanding-the-difference-between-a-par-30-and-br-30-bulb/
  
  >> PAR's sit flush while BRs bulge out a little: http://ledlightbulbs.com/blogs/blog/18473565-par-led-vs-br-led-and-why-it-matters-to-you
  
  >> Oh, and I forgot that I asked this same question 3 months ago: https://www.reddit.com/r/Hue/comments/4ibust/could_a_hue_br30_be_used_in_a_bathroom_recessed/

The one light will work and it's the one thing I wouldn't go cheap on. You could get the smaller size and still be ok. As for the carbon filter [this one on Amazon] (http://www.amazon.com/VenTech-VT-IF4-CF4-B-Controller/dp/B005GJ7TFE/ref=sr_1_2?ie=UTF8&qid=1449034018&sr=8-2&keywords=4inch+carbon+filter+fan+combo) comes with a speed controller which is great for reducing noise and controlling temps. You can mount the fan in the tent or out. It will sound like a fan is running 24/7. No different then a window fan. None of my house guests comment on it. Plus a nice filter and high power fan will be far less noticeable then weed stinking up the whole house.

As for number of plants I would do 3-4 on the first go so you get the hang of it and can make a mistake on one or have a male and not feel bad. The plants will grow as big as you want to allow. They will fill in all the space that is available. Also read up on trimming up all the lower growth once you flip light cycles so you get maximum large main nuggets. For example I had two sugar black rose in 5gal (19L) buckets and got about 200g dried. Now I'm doing one plant in a 10gal (38L) and it's much more hearty and bush like, explosive with growth, and yield should be similar. So if you want a lot of one strain go big or always do 2 so if you loose one you can just up pot real big and still expect a similar yield each time you harvest. Also 2 months is a tight time window it may be more like 3+ you can't rush nature :) going up to a larger pot as soon as you can allows the plant to get big right away. Keeping them in cups or starter pots longer then a few weeks it will grow more leaves when roots are stable, going up to larger pots right after that allows the roots to reach out more and gain large new growth. Only up pot about 3 times. You can always veg for as long as you want and flower will run another 6-8 weeks depending on the strain.

-i use a BreatheRight by Allen for my allergies. It’s expensive ($600-ish) but if you get the charcoal filter it’s crazy good. Will remove scented candle smells and Bacon smells as well as the very marijuana smoke that I smoke inside my own apartment.

I haven’t received any complaints. It’s been 2 years.

The next thing would be to go one step higher and purpose an in-line fan filter and attach a huge 24” charcoal filter.

This option is actually WAYYYY more effective, but requires just a little bit of knowing how to put stuff together, and it’s slightly loud, but god damn, it totally cleans all smells and allergies.

This first link is for an in-line fan:


https://www.amazon.com/gp/aw/d/B07FPFVZTZ?pf_rd_p=731c2082-c3b6-4ec5-ba3b-337a0516607d&aaxitk=i0llSkJCSVXgMhex-F1n.Q&hsa_cr_id=3570293760101


Second link for the filter:

https://www.amazon.com/gp/aw/d/B008NYF8S4/ref=psdcmw_5446824011_t1_B07FPFVZTZ


Third link is for the Allen Breathe Right:

https://www.amazon.com/Alen-Customizable-Purifier-HEPA-Pure-Allergies/dp/B00APO426E/ref=mp_s_a_1_3?keywords=allen+breath&qid=1574290745&sr=8-3


The Allen is more aesthetically pleasing and is a complete unit that requires zero installation. Simply plug and play. This model is for 1100sqft. If you get this, get the charcoal filter. They have lots of filters.


The in-line fan and filter option will be like 10x more powerful and way more affordable than the Allen, but unpleasant to look at and is louder.

http://www.amazon.com/Soler-Palau-Mixed-Inline-FanTD-100/dp/B0027E3Q4Y/ref=pd_sim_sbs_hg_5

is the one i was referring to. The only reason i say go with this one over the TT is because the TD is a legit brand and has, in my opinion, a more qaulity product. One of the reviews on that TT said the hole diameters were smaller than 4 inches. I doubt you know what its like trying to fit ducting thats one size onto a hole thats another, its not fun


http://www.amazon.com/LED-wholesalers-Hydroponic-Scrubber-GYO2305/dp/B005HT0GZ8/ref=sr_1_1?s=home-garden&ie=UTF8&qid=1322940764&sr=1-1

this is the carbon scrubber i recommend as well. Its pretty heavy and the shipping is 10$ but I feel likey ou can get either that or the TD-100 with free amazon prime shipping if you get their little trial subscription. Thats what I did and it was great for when i bought all my grow stuff.

ID definitely recommend that scrubber though because even with shipping its still cheaper

Mine is a generic Chinese 80W. Perhaps a properly built machine has more power draw but mine is nowhere near 2500W. I have something like this for exhaust. My chiller is overboard for sure (1/2 HP cooler) and sits on a separate circuit. My original circuit still has enough free amperage for me to run a hand sander occasionally though, so I know I'm not at the edge of tripping it, and if I had a more reasonably sized chiller would all fit together.

I would get a 600w HPS cool tube . Affordable and can't argue with their results. You will need to get an inline fan (duct booster) to go with it, also cheap on amazon. Just my opinion. A little over your 200$ but uoi could also go down to the 400w HPS. But for the 600w, to go over your budget by 40-50$ will reward you well. I also do understand that these are not as efficient, but its like only $30/month to run a 600HPS.

​

The low end LEDs will give you good results as well (if used properly) but I don't feel you will ever get the results you would using HPS.

​

Just my opinion.

You need 400cfm per light if going air cooled, or around 4000btu per light of AC. Runnng an AC will increase your power bill about 35% over what the lights draw. SO 2000W + an 8000btu AC will be around 2700W total draw. Keep in mind if you do a sealed room with AC, you will also need CO2 supplementation since the plants will quickly deplete it from the air in the room.

Kind of depends in your climate. You can easily run the lights at night so that you have a lower outside air temperature to rely on. So look at your average night temps. If they are 65 or below during the warmer parts of the year, you can probably get away with just using a 900cfm exhaust fan + carbon filter and a 600-700cfm intake fan. If your night temps are much higher than that, you will need AC.

With a small setup like this though, and AC may not be that much more expensive than a fan-cooled setup. This is because smaller fans tend to be less efficient and more expensive per CFM at this scale. So a 900cfm exhaust fan like the can max 8" HO will run you about $225 and draws about 275 watts.

The can max 8" regular fan for an intake (667cfm) runs about $200 and draws 176 watts.

So that's $425 without tax or shipping, and a combined current draw of 450Watts. That's only 250w below what an 8000btu AC draws, which is only around a $15-$20 per month difference in the power bill between the two setups. Not to mention, an 8kbtu AC can be had for less than $200. Not too bad for guaranteed temperature control and lower noise. The larger cost in this case is the additional cost of CO2 supplementation equipment. You need a CO2 controller/regulator which are a few hundred bucks, plus a reliable source to swap out CO2 bottles.

I can say with reasonable confidence that that's probably not enough for an outtake to maintain throughflow. I use, and would highly recommend for both strength and noise level the S&P silent series. I realise buckets are often a fairly budget thing and i didnt actually get one of these until my 3rd grow but the thing is the bollocks. Have had a few 4inch extractors and this is leagues ahead and justifies the price. Enough airflow to keep it below 27C even in summer (30c being the max you should keep a plant at in celsius).

https://www.amazon.com/Soler-Palau-TD-100-line-Exhaust/dp/B0027E3Q4Y

Can be found elsewhere too if you're anti-amazon for whatever reason.

Im also sure you could probably source a more powerful PC fan for less money but i dont have enough experience in that area to make specific suggestions.

That's an ongoing investigation on my end.

So far what I've discovered is that adsorbent technologies, carbon and otherwise, do work but with a number of caveats.

Here's some devices I've tested - with a high grade industrial PID meter directly on the output of the exhaust:

1. Austin Air HP+ - Immediate lowering of VOCs anywhere from 20 - 35%. Also includes 15lbs of carbon and HEPA filter. I do have concerns regards filter life. Kinda of expensive at >~ $700.00
   
2. Terra Bloom carbon cylinder and in line fan. This device marketed to the marijuana market but delivers excellent performance and a very low price <~$250. I've seen immediate reductions of 50 - 70 %. It's loud and not pretty but the bang for buck is outstanding.
   See:
   https://www.amazon.com/gp/product/B06X3VFK2T/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
   https://www.amazon.com/gp/product/B01CTM0LLO/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1
   
3. Vortex, a Canadian company is currently my favorite. Quality construction with patented innovations to increase the life of their carbon filter. They make 4 filters with the smallest having 30lbs of carbon - WoW- and that's the smallest. They allow the filter to be turned over. they claim this results in extend filter life. I've seen reductions up to 85 - 100%.
   See:
   https://www.hvacquick.com/products/residential/Indoor-Air-Quality/Carbon-Air-Filters/Vortex-PROFilter-Reversible-Activated-Carbon-Filters
   https://www.hvacquick.com/products/residential/Fans/Hydroponics-Fans/Vortex-Powerfans-VTX-Series-Inline-Fan
   
4. I also tested a non carbon adsorptive device. These devices are attractive as they over come some fundamental deficiencies of carbon. Unfortunately the device I tested was not near as efficient as any of the devices I mentioned above, but it was only using a 1 lb filter. If heavier filters become available at a reasonably price I will reconsider.
   
   Limitations of carbon:
   
5. When carbon is saturated trapped VOCs can be released - Not Good
   
6. When carbon is warm - upper 70s - trapped VOCs can be released - Not Good
   
7. In humid conditions carbon trapped VOCs trapped can be released - No Good.
   
8. Carbon is biased. Some VOCs are trapped more efficiently than others.
   For instance carbon is not very effective (not totally ineffective) for formaldehyde.
   
   Often times carbon is mixed with additives to breakdown VOCs that carbon has a hard time catching. That's true with the Austin Air, but these additives can break down faster than carbon.
   
   
   The quickest most effective method to bring VOC levels down is to ventilate. Getting temps up and opening Windows and blowing air out of rooms/homes is the best method of all. Remember VOCs are liquids at ambient temperatures. What gets into the air are molecules that off gas from the liquids on surfaces. Just like taking a how shower creates more humidity.
   
   All said, I would really, really like PCO/PECO technology to work. The concept is very attractive. Instead of trapping (carbon), or exhausting (ventilation) lets just destroy the VOCs by turning them into water and CO2. I was really disappointed when measurement with the Molecule were nil. I was expecting it to working judging by the 3rd party test that MoleKule funded. Problem is the environment the MoleKule was used in does not resemble what we find in our homes. That difference seems to be significant.
   
   I haven't given up yet concerning the MoleKule or other PCO or plasma systems yet.
   
   Finally keep in mind that the MoleKule might be very effective in killing biologicals. Not something I tested for.

Hey! So what I did was buy this controller and then add on the fans wherever I wanted them. These parts are made for audio visual racks so they look good and are quiet so it's not an eye sore. I highly recommend looking at "AC Infinitys" other stuff as they have some new fans that I like. Easiest solution for you might just be something like this.

I install this fan in my basement bathroom. The fan is fairly quiet and has a great humidity sensing feature. Leave it set and it kicks on when the shower starts steaming up the bathroom automatically. Great in a basement where guests shower as they won't have to worry about it. I did the 130 CFM version which can completely remove the air in the bathroom in less than 5 minutes.

If someone is hoping to use the fan noise to conceal louder bathroom body functions they may be sad.

A tent isn't absolutely necessary, but having reflective surfaces surrounding the grow space will help contain/reflect the light back at your plants. You'll also need to lightproof everything during flower... and light can usually leak through the edges of a closet door. A tent will also allow you to leave the closet door open a bit, so you get get fresh air exchanges into the grow space.
If you don't have a way to pull fresh air in and exhaust hot air, that closet will eventually turn into a large ez-bake oven (your efficient, relatively low wattage light will mitigate this some, but you will still need air exchanges). You can get a 2x2 tent for $63.

Regardless of tent/no tent, you'll want a carbon filter & fan (with controller) during flower, or your whole place will smell like weed. (Don't skimp out on the filter... the one I linked is legit/works properly).

I know that all tacks on another $250 to your grow setup, but they will easily pay for themselves after your first harvest. You can get started without these items and get them over the next couple of months while your plants are vegging. (also check craigslist... you can often pick up used tents and fans for cheap).

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.

I bought a 6" inline fan off of Amazon. Little pricey but is definitely working great atm. https://www.amazon.com/gp/aw/d/B07FPFVZTZ?psc=1&ref=ppx_pop_mob_b_asin_title

Yep, I also have the band heater and I love it. Takes a while to get up to temperature, but once it's there it's awesome.

And for OP asking about a controller - Brewhaus always seemed to be out of stock. I started looking around and found basically the same thing on Amazon for half price. Get one like this.

up to a good start...

If you dont use a carbon filter and you dont have a long run for the exhaust maybe this could be helpfull.

I used a 6'' vivosun inline booster fan for my 5x5 with a 400w hps and it sucked the air out quite fast, a bit noisy should be more than enough for any hps and was pretty cheap compare to the usual inline fan.

and you can buy a speed controller for cheap on amazon too because its almost pulling too much...

https://www.amazon.ca/VIVOSUN-Inline-Booster-Noise-Grounded/dp/B01C82SZRM/ref=pd_lpo_vtph_86_bs_t_1?_encoding=UTF8&refRID=93CSGQER4PC5V7Q26864&th=1

​

but if you plan on running long tubing for the exhaust or have 2 or 3 lights together get a bigger inline fan

https://www.amazon.com/Hurricane-Inline-Fan-Performance-Ventilation/dp/B006Z1JLN0

​

have an 8 inch (around 800cfm) for a 5 x 10 and with the filter and long ducting run and its borderline. If you have straight and short ducting... you can get away with a smaller fan . The filter will reduce the pull of the fan .

LG makes one and I've researched it heavily.

It costs as much as a washer and a dryer. It doesn't get your clothes super dry. It does not require a dryer vent, which might be good, but you also don't have the option of using a dryer vent if you decide you want to. Therefore, it can raise the humidity in your house because that water has to go somewhere. Also, they are probably slow.

All that said, many people love these machines.

My personal plan was to replace the washer and dryer with a pair of these to speed up the whole laundry process, but that's spending a whole lot of money.

i was also planning to put this in the laundry room to combat any additional humidity the machines might create.

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

Well you would need a fan with cfm that is not higher than the carbon filter rated cfms...

-(75$) Hurricane Inline Fan - 6 Inch | 435 CFM | High Performance, Commercial Grade Inline Fans - Ventilation Fan - ETL Listed https://www.amazon.com/dp/B006Z1JLY4

-(150$)Phresh Filter 6 in x 24 in 550 CFM https://www.amazon.com/dp/B0032JULLY

There is many different brands. For both fans and carbon filters. Just make sure the cfms of the fan are not higher than the cfm rating on the carbon filter...also how are you gonna exhaust it out your window? It will be quite visible...you may want to buy the carbon filter in a hydroponics store...I've heard stories of getting bad/used ones from online...

Thanks. I'm using fan light recessed combos that are in the rest of the house.

"Broan Recessed Fan and Light Combo for Bathroom and Home, 75-Watts, 70 CFM" [https://www.amazon.com/dp/B002OU1G98/ref=cm_sw_r_cp_apa_i_rFjlDbV1TP8ZS]

Toilet depth isn't an issue so plan to use what's in the rest of the house. Plus the toilet backs up to exterior wall so traditional will be easier.

What you want is one of these kinds of fan:

https://www.amazon.com/Hurricane-435-CFM-Inline-6-Inch/dp/B006Z1JLY4/ref=pd_day0_469_2?_encoding=UTF8&pd_rd_i=B006Z1JLY4&pd_rd_r=63GQ560MCDYKBTZ6BQP9&pd_rd_w=IwCoq&pd_rd_wg=UxPaB&psc=1&refRID=63GQ560MCDYKBTZ6BQP9

And you plug it into one of these:

https://www.amazon.com/Variable-Controller-Hydroponic-Inline-Vortex/dp/B00CJ14YVY

I'm not endorsing either product specifically, just giving an example.

If you're in a legal state or just feel more comfortable shopping around online, you should be able to find a "complete kit" of fan+filter+controller+ducting for under $150+shipping for 4" sizes.

I don't smell my plants with my 4x4 closed. So the same thing should apply for you. Since you are venting outside you should be fine. It may be an light odor in the room. But it shouldn;t smell up the whole room until you open the tent.

This is the best on teh market. https://www.amazon.com/AC-Infinity-CLOUDLINE-S6-Controller/dp/B07FPFVZTZ/ref=sr_1_6?keywords=ac+infinity&qid=1554815892&s=gateway&sr=8-6 There one with a humidity control as well. If not https://www.amazon.com/VIVOSUN-Inline-Variable-Controller-Ventilation/dp/B01DXYMJ94/ref=sr_1_3?keywords=vivosun+6+inch+fan&qid=1554816051&s=gateway&sr=8-3 Will be more then enough to vent the tent out the windodw.

Man,
I’ve been all over the place researching and dam.
Ahaha

I think I’ve got my set up.

I’m going to hold to your advice and start with 1 bucket - 5 gal. DWC grow. If I have a good harvest I will move it up to two 5 gal buckets.

I’ve decided On a separate veg and a separate flower tent.

I will start with buying clones from a local bud shop.

For Veg I will get a 2x2x4.5 tent
Topo grow kit
https://www.amazon.com/gp/aw/d/B075KCL71M/ref=ox_sc_act_image_7?smid=A1CLX3M21C6YH2&psc=1

I plan to run a CMH at 4200k (Phillips).

For flower I will get a 3x3x7 ( I’d increase to 8)
https://www.amazon.com/gp/aw/d/B014263RJI/ref=ox_sc_act_image_11?smid=ATVPDKIKX0DER&psc=1

I plan to run a CMH at 3100k (Phillips)

Air pump for the DWC ( I would one for each tent)

I found - https://www.amazon.com/gp/aw/d/B06XDKRYC6/ref=ox_sc_act_image_9?smid=A2PQGFJXAT8J9K&psc=1

For circulation I found ( I would buy one for each tent)

https://www.amazon.com/gp/aw/d/B078SXNJ21/ref=ox_sc_act_image_6?smid=A3OJY9E0ZY1FCH&psc=1

And would add two of these fans into each tent

https://www.amazon.com/gp/aw/d/B000U9V47E/ref=ox_sc_act_image_2?smid=ATVPDKIKX0DER&psc=1

Have a basic titan mechanical timer ( 2 of them)
4 vivosun air stones 4x2
2 Digital humidity / temp reader
4 - 5gal buckets



Any concerns ?
Thus far purchase is at $1600

https://www.amazon.com/gp/aw/d/B000O8D0IC?fp=1&pc_redir=T1

This is what I use. Can't really say it is good or bad since I don't have anything else to compare it to. It does suck up most of the fumes but not 100%. Some always escapes when I open the lid.

I keep the original fan just for the housing and easier hookup to the 4" vent hose.

I have this 4" (10cm) set and this 6" (15cm) set both going 24/7. From outside the rooms it sounds like air conditioning units going all the time. Not really audible from anywhere but the hallway in front of the doors.

My carbon scrubbers are placed like this. I feel like it helps pull hot air up and away from the plants.

My flower tent is 1m x 1m x 2m with a 600w hps which works out to 55w/ft^2 . My house is around 15-21c and I have to run an air conditioner in that room for most of the day to keep tent temps below 26c.

Also a fan of enginerding cheaper solutions:
I live in the south so I punched through the wall and have an inline moving air out of a vent coupled with a space heater does the trick even when cold... like the whopping 50 degree winters here...

But for heat retention I would emulate the tree growers solutions (duct fan hooked to a charcoal filter ). Keep in mind even the "quiet" duct fans still make a loud hum if exposed in your garage. Model I bought.

And potentially expect a knock on the door...but hey, relocate your grow house somewhere else first and it wont be a problem.jk

Seriously though, I'd weigh the costs of making something + the filter media vs buying a commercial air cleaner as those suckers really work. I know if I had to retain air and had 2k to drop I'd buy one.

If you're going to grow in your closet (which sounds like the best option) you will want a carbon filter to prevent it from stinking up your place. You can buy carbon filter/fan combos on amazon that are very reasonably priced. This is a good option for a closet size grow.

This fan

6" Inline Fan - 395 CFM Exhaust Duct Fan, Built-in Speed Controller, ETL Listed, Pre-Wired 6 FT Grounded Cord - Great Use in Grow Tent with Carbon Filters, Light Fixtures, Intake. Fits 6 Inch Ducts. https://www.amazon.com/dp/B01L0D0UEQ/ref=cm_sw_r_cp_apa_i_5YNSCb9Y7EARS

With this filter

iPower 6" Inch Air Carbon Filter Odor Control with Australia Virgin Charcoal for Inline Fan, 420 CFM https://www.amazon.com/dp/B008NYF8S4/ref=cm_sw_r_cp_apa_i_6ZNSCbGZX32RJ


Just know that when you open the tent. Shits gonna smell ..

I'm pretty happy with mine but I think I'm going to build a much bigger one for next year. I've already got a big crazy fan on it ( http://www.amazon.com/Rule-240-Marine-Blower-4-Inch/dp/B000O8D0IC ), and I think more airspace inside the cooler would help

Always be aligned on a negative balance. Make sure any air you extract you replace otherwise you could have problems long term.

Use Warehouse fans with shielding/enclosure or use fans that have shrouding around them.

Think something like this - https://www.amazon.com/iLIVING-ILG8SF10V-Wall-Mounted-Variable-Shutter/dp/B01G8I7HVC

You can also build a little roof/enclosure around it to prevent rain/snow coming in but be mindful that if the fan you install is strong enough, you still may pull them in.

That fan is fine. When someone says booster fan they usually mean one like this

https://www.amazon.com/VIVOSUN-Inline-Booster-Noise-Grounded/dp/B01C82SZRM/ref=sr_1_3?ie=UTF8&qid=1536626599&sr=8-3&keywords=booster+fan&dpID=517UzZcgrEL&preST=_SY300_QL70_&dpSrc=srch

You can get pens for cheap. $15 or so on amazon. You have to calibrate these more often than one of the more expensive ones like bluelab but other than that they work fine.

I am working on adding a little brewery to my basement. I will convert a propane burner to use natural gas.

Its easiest to just replace the burner itself. But I believe you can also just modify the inlets also. https://www.youtube.com/watch?v=0DD9dhluz3Q

I also got a marine blower from amazon, should handle the steam and moves 235 CFM. https://www.amazon.com/gp/product/B000O8D0IC/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

It will work, but this one has way better quality and guarantee and way less noise, http://www.amazon.com/gp/offer-listing/B007ZU6ZT8, check your local homedepots online sometimes it is cheaper that way.

https://www.amazon.com/gp/aw/d/B01L0D0UEQ/ref=ya_aw_od_pi?ie=UTF8&psc=1

That's fan sitting in my crawl (unused) feels like it moves 100cfm max and sounds like a 12inch

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

i'm looking at this one:

http://www.amazon.com/dp/B005XNNYMU/ref=wl_it_dp_o_pC_nS_ttl

and:

http://www.amazon.com/Active-Air-720-Inline-8-Inch/dp/B002JQ4K1I/

would these be considered good quality? or do i need to spend roughly twice as much?

thanks for the info.

I've had good luck with this one

Should be plenty of CMF for a grow tent that size. Plus it has a built in controller so you can turn it down if needed. It pulls around 130w at full blast and 100 at min setting.

You could probably yield about 3oz on your first grow. Far more if you fine tune and get some experience.

You'd need about 600 watts of light. at $.12/kwh, thats an extra $30/month on the electric bill. Not too noticeable. You'll also want a 6" carbon scrubber to leave room to grow. see what I did there?

I suggest you look up how to scrog, its very easy.

Will you be doing hydro or soil?

Based off of the quantity you have, IF you pipe them all together I would do at least an 8in for main ducting. You could connect 4” or even 6” to the main 8” or larger and then supplement the airflow with an in-line air duct fan. For ~$100 u can get an in-line fan that does 745CFM on an 8” duct. IF you are not connecting them all together and they are each separately exhausting, a 6in will be the minimum IMO.

Hurricane Inline Fan - 8 Inch | 745 CFM | High Performance, Commercial Grade Inline Fans, Quiet Operation - Ventilation Fan - ETL Listed https://www.amazon.com/dp/B006Z1JLN0/ref=cm_sw_r_cp_api_GC7QAbPKKCK20

I bought one of these for exhaust of my 7 GPU rig and I highly recommend it. Active Air 720 CFM Inline Fan, 8-Inch https://www.amazon.com/dp/B002JQ4K1I/ref=cm_sw_r_cp_apip_Nx8lUuqP8GAKB It’s been running about 6 weeks now and does a great job of pulling the hot air out of my storage room and some “cooler” air in through my louvered door. I tried a small room A/C but this is a much better solution - it vents up to my attic and out my ridge vent. I built an exhaust manifold with 3”x12” ductwork with (14) 2” diameter holes in it which gets the exhaust closer to the output of each gpu in the rig. Will post some pics.

http://imgur.com/a/cTCst

I'm told this one works well, but I don't have one myself: https://www.amazon.com/gp/product/B07FPFVZTZ

It's 175% more powerful than the one you linked

When air is moving we dont think that there is an electric motor turning it but not getting the benefit of the air since we redirect it. A little noise to make sure there isnt a fire is a fine exchange. If it is too loud this way try moving it in the attic away from any walls.

This is the fan set up I use and once its mounted it stays quiet.
http://www.amazon.com/gp/product/B006Z1JLY4/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

http://www.amazon.com/gp/product/B006NGI8VS/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1


The transformer made all of the difference. I keep it set at about 75% of maximum.

Something like This would work great. Just cut a hole and trim around it.

I got one of these to help with air flow but also got one of these which allows me to control the humidity really well.

I got one of these lights, a little less money than the one you had in your cart. Although I will be buying one more for my next grow.

This is the fan I'm using. I have the fan sitting on top of the tent pulling air out

https://imgur.com/gallery/At57A

I'd recommend Lovehoney's Classic Plug-In Massage Wand. I'm actually putting the finishing touches on my review of it so I can publish it tonight. I have a special edition one from a couple of years ago as well (it's held up pretty well) as this new one that they sent me to review.

It's a bit weaker than the Magic Wand and it has a dial/ scroll wheel control rather than set power levels. It's pretty darn rumbly, too. You can start much lower than your Hitachi and work your way up gradually. As others have mentioned, you can add a rheostat to your wand to make it adjustable but it may wear out the motor faster. I prefer the Lovehoney Wand because it already has integrated variable controls.

Similar issue and the solution was to replace the exhaust fan with a Panasonic with built in motion and humidity sensing capabilities. Panasonic built a smart thing.

You need to do some math to figure out the temperate that all those watts would be giving off.

Once you have that temperature, you then are going to need to figure out how many times you need to replace the air in the tent via your output fans.

For making this easy I think you should just be concerened about the output fans and let the intake be passive through the grow texts vent holes.

For instance a 4x4x7 tent has 112 cubic feet.
The measurement of exhaust (output) fans are in cfm. ( cubic feet per minute ).

So if you were to get this fan. Which is rated for 740 cfm.

Hurricane Inline Fan - 8 Inch | 745 CFM | High Performance, Commercial Grade Inline Fans, Quiet Operation - Ventilation Fan - ETL Listed https://www.amazon.com/dp/B006Z1JLN0/ref=cm_sw_r_cp_api_wrPSAbZ1FFYQK

And do some quick math.

740 x 60mins = 44,400 cubic feet of air moves per hour.


44400 / volume of room (112) = 396.5 times within that hour, that the grow room air is sucked out through the attic - and intaking the air in the room passively.

An important part to this scenario is that the air needs to be completely vented outside of the room.

This also assumes that you have this fan on at all times, and at full speed. These types of fans comes with fan controllers to lower cfms. You can also put a timer on the power to the fan to control how often you need it on.

Your solution to getting the heat out of the room lies within this information I’ve shared with you.

Also - all these calculations are rated for 8inch ducting. If you lower the width of your ducting, it can’t move as much air and all your calculations need to be factored by that.

More competent folks than I can comment on this, but would this fan speed controller (well, the version for the correct voltage) work for this use?

Just a thought... Have you considered using a fan that employs both a humidity sensor and motion sensor simultaneously (e.g.)?

Alternatively, you could use a standard exhaust fan, combined with a humidity-sensing switch (e.g.). The switch contains an on/off button, so you can still control the fan manually.

Yeah and the sellers say it sits at 49 db. With an additional controller it just makes that humming noise no matter what. Would a variac controller eliminate that noise ? I might also get this s&p fan instead because I heard mixvents were pretty quite. May still have to get a variac with it.

Depends on the blade angles, shape, rotation speed, etc... a 6" fan can potentially move a metric shitton of CFM.

Case in point:

https://www.amazon.com/Hurricane-Inline-Fan-Performance-Ventilation/dp/B006Z1JLY4

That thing pushes almost 450 CFM - consider your average exhaust fan for a medium to large bathroom is around 100 CFM... they make an 8 inch version able to punt almost 750 CFM as well.

Is the furnace running non-stop, or does it turn off intermittently? If it's running non-stop, it's undersized.

If it is turning off intermittently, then it sounds like the duct work wasn't properly configured, or if the unit was upgraded, the blower wasn't properly specced. To solve this easily, but a register fan. It will move more air down stairs to fix the problem. There are cheaper models than the one I listed. There are models for ceiling vents, floor vents, and wall vents.

AC Infinity AIRTAP T4, Quiet Register Booster Fan with Thermostat Control. Heating Cooling AC Vent. Fits 4” x 10” Register Holes. https://www.amazon.com/dp/B0792QR5YT/ref=cm_sw_r_cp_apa_DBQ.BbBQZJ180

80cfm is no where near enough to work as an exhaust only AND carbon scrubber in that way. just get a proper 4" fan and filter for that size, cheapies on amazon for ~$130 range with speed controller.

4" 190cfm inline duct fan and carbon filter combo $97

fan speed controller $21

If you can insulate it well, I bet 50*f outside could be dealt with. I'd be concerned about 'lights out' temps though.

I have not, no! I did check out this: "approximately 65 CFM per kw" https://www.taitem.com/wp-content/uploads/GeneratorsandCombustionArticleACCEPTEDEDITS.pdf

My generator has a pretty sizable internal fan to blow over the inverter coil thingy. I'm figuring that this shutter exhaust fan should be enough: https://www.amazon.com/gp/product/B01G8I7HVC/ref=ppx_yo_dt_b_asin_title_o00__o00_s00?ie=UTF8&psc=1

I'll put it on the exhaust side to suck out all of that hot air. Up to 600 CFM should be plenty.

It's just a 2x4x6, Quictent 48"x24"x84" to be exact. I don't really recommend this tent, but it's what I've got right now. There's some light leaks and poor stitching I had to cover up.


It was originally meant for iPower 48"x48"x78" but I had to downsize for some space reasons.


I've been slowly upgrading where I can between grows, so the initial investment didn't hit me as hard. But if you can afford it, I would recommend getting higher quality material the first time around and saving your money long term. I've got 2x Blurple VIPARSPECTRA Reflector-Series V600 600W, that old 4x4 grow tent, and that old fan+filter combo all collecting dust -- essentially an entire grow setup.


I'm now using an HLG-600H Quantum Board (dimmed), that 2x4x6 tent, and the filter+fan combo I posted above.


Also, my fan is probably overkill for my current setup, so I did the math for the CFMs needed for my tent and used a Variable Fan/Router Speed Controller to turn it down a bit. Not sure if I'd completely recommend that controller, but it's just what I've got.

any recommendation on a decent speed controller? II have this and get a humming noise when I turn my vortex down, so it still end up being pretty loud.

Also you can save about 19 dollars by buying this kit

http://www.amazon.com/gp/aw/d/B005GJ7TFE/ref=mp_s_a_1_3?qid=1454015965&sr=8-3&pi=SX200_QL40&keywords=ventech&dpPl=1&dpID=51BOvHdX3AL&ref=plSrch

You need an activated charcoal filter. I have one for my shop that I use for VOC (fumes).

• Air Carbon Filter
  
• 8" inline Fan. Assume a 20x20x8' room, 720 CFM is a air change over every ~4.5 minutes.
  
• Ducting
  
  Put the charcoal filter where everyone is. Put the fan as far away as you can with the ducting. Dirty air gets pulled to the back of the room/building blown through the duct out the charcoal filter. You set up a natural breeze.
  
  
  Warning: Buying any of these products will make Amazon think you are grower of ... other things.
  

Panasonic makes some reliable and very quiet bath fans. I put one with a motion sensor in my first bath and a heater/ fan combo in my master bath with a countdown timer switch. I bought them on Amazon.

Here is an easy fix especially if it’s just one room. https://smile.amazon.com/AC-Infinity-Register-Thermostat-Control/dp/B0792QR5YT/ref=sr_1_4?ie=UTF8&qid=1542207039&sr=8-4&keywords=vent+fans+booster&dpID=41CSIeq4GYL&preST=_SY300_QL70_&dpSrc=srch

Fairly easy all things considered:
https://www.amazon.com/Panasonic-FV-11VQC5-WhisperSense-Ventilation-Technology/dp/B005XNWP5M/ref=sr_1_2?ie=UTF8&qid=1522014724&sr=8-2&keywords=panasonic+bathroom+fan+humidity+sensor

https://www.amazon.com/gp/product/B078SXNJ21/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

my exhaust fan up top. mounted the carbon filter inside, fan outside. two small fans on the sides, and one larger fan close to an open port in the back where no light shines on the outside. I'll test it tomorrow as I'm still out for work. I know about making it a negative pressure area thankfully. Both lights come with dimmers. Fan comes with speed control, and 400CFM.

​

What I meant by pumping air in, would simply be the smaller ones close to the ground next to an open exhaust hole. Again, I'm quite horrid at descriptions, but I think I've done my homework. Just nervous & excited. If you can't tell, one of the main reasons I will grow is anxiety. Thanks for looking out!

They're not very attractive but you could try a register booster fan: https://www.amazon.com/dp/B0792QR5YT/

Do you mean this monstrosity of a creation? http://www.amazon.com/Hurricane-Fans-435-Inline-6-Inch/dp/B006Z1JLY4/ref=sr_sp-atf_title_1_1?ie=UTF8&qid=1407936391&sr=8-1&keywords=6+in+hurricane

Fellow Maine-ah here, just setup an 8 inch fan and it's almost overkill. https://www.amazon.com/gp/aw/d/B01CTM0LLO/

AC Infinity CLOUDLINE S6, Quiet 6” Inline Duct Fan with Speed Controller

https://www.amazon.com/dp/B07FPFVZTZ/ref=emc_b_5_i

If you decide not to go that route, a padded vent tube will greatly cut down on the built in fan noise:

https://www.amazon.com/gp/product/B075J7ZYT8

Have 2 small fans coming in look on the right of the first pic. 2 small rotating fan on the left side out of view. Top I have https://www.amazon.com/gp/product/B007ZU6ZT8/ref=oh_aui_detailpage_o08_s01?ie=UTF8&psc=1 on the top blowing out.

Plan on upgrading to a Vortex 347 soon.

I am very iffy on the heat stress cause it started with the first set of leaves and a cfl in my bathroom that was 72f

I am swapping out my 250 watt cob today.

No, it's not safe. Expect either the fan or the dimmer to overheat and possibly catch fire. Light dimmers are designed to dim lights, not control fans or electric motors.

You might try a fan speed controller, like this one: https://www.amazon.com/Variable-Controller-Hydroponics-Exhaust-Adjuster/dp/B00U3LD1WA/ref=sr_1_10?ie=UTF8&qid=1466731230&sr=8-10&keywords=fan+speed+controller

I went with a 60W eBay chinese special like this is a nice starting option because it does include absolutely everything you need (except a water reservoir, I use a Coleman cooler) at a reasonable price. You can get it delivered to your doorstep and stay within your $2500 budget.

That being said, there were several initial pitfalls (like blowing fuses and melting switches) that were caused by some exceedingly poor documentation (and a little laser cutting inexperience on my part.) Once I worked out those initial problems, its been cutting reliably for us for the last 6 months with almost daily usage.

The only real upgrades we've done have been a water cooler (we grabbed a water refigeration unit for a large aquarium for $275) and an upgraded exhaust fan (the included unit was very loud).

Next on the list would be an adjustable air assist with a more consistent flow, but what the included air pump is works well enough.

https://www.amazon.com/gp/product/B005GJ7TFE

For the price, this doesn't seem too bad.

https://www.amazon.com/Variable-Controller-Hydroponics-Exhaust-Adjuster/dp/B00U3LD1WA/ref=sr_1_1?ie=UTF8&qid=1493069034&sr=8-1&keywords=speed+fan+controller

You just hook up a speed controller to both fans.
That way you can raise/lower each of them as needed.

My fans are always on. 24/7. Keep that air fresh. Keep it moving. It's not just about the heat. I want fresh air passing by the plants at all times, and stale air moved out.

The benefit of a controller is you can create the ideal situation for your needs. I like negative pressure to avoid odor leaking. Plus if you have a scrubber this is what you NEED. You want all of your air to pass through the carbon scrubber, so your exhaust should be turned up higher than your intake, creating negative pressure. Therefore the only air escaping from your tent is via your exhaust. IE, no smell leaks.

If you must turn them off at times, I would turn off both at the same time. That way the fluctuation is more minimal. I can't think of many reasons to turn them off though. I would keep on permanently.

I’d try Home Depot first. (Woodworking router, not internet router.)

Yescom Variable Fan/Router Speed Controller 3 Settings Hydroponics Inline Fan Exhaust Air 500W to 1800W Adjuster https://www.amazon.com/dp/B00U3LD1WA/ref=cm_sw_r_cp_api_i_Og8gDbF4QC0V5

>There is no such thing as a humidity sensing fan

This statement is false

Agreed. That fan is never going to produce a negative pressure. Which means, OP, your tent is leaking air(scent).

My fan

Look into something like that.

VenTech.

This one? http://www.amazon.com/Rule-240-Marine-Blower-4-Inch/dp/B000O8D0IC

According to this Amazon review page "blue mode" is humidity sensing and "yellow mode" is full-on?

I have this combo in mind.

You do not need a fan that crazy. Get a six inch inline duct fan. That will do the job

>A year later it's still pretty great but sometimes cuts out after about 20 minutes of use... at the very worst moment it's cut out a couple of times now.

That's actually a built-in "feature" of the Magic Wand Rechargeable to keep it from overheating. Which seems unnecessary because the toy doesn't really get hot and you can turn it straight back on after, but yeah. It's got a 20-minute auto shut off.

>are all three of these the same crappy wand just different colors and labels ?

Probably. There are a lot of white label sex toys on the market, meaning they're made by a single manufacturer and any company can order them with their own branding to sell as their own.

>Must:
>
>have a scrolling speed control wheel
>
>just as powerful as the Hitachi or more so
>
>not spending $150+ ... ideally lets keep it under $100

I don't think you're going to find a single toy that ticks all of these boxes, unfortunately. The only scroll wheel vibes I know of are lower quality and definitely weaker than all three of the Magic Wand iterations.

Also keep in mind that RPM doesn't actually indicate the power of a wand, just the speed of its motor. Depending on the individual motors there can be higher RPM toys that are weaker than lower RPM ones, like the Magic Wand Rechargeable's 6,300 RPM on high versus the Magic Wand Original's 6,000. The Original is still slightly stronger in use.

If you want, your best bet for all those features might be to get the Magic Wand Original, swap the porous head with Vixen's Off With Your Head silicone replacement, and pair the toy with a router speed controller for incremental adjustment. (Keep in mind that this may shorten the lifespan of the motor, but a lot of Magic Wand fans swear by it.)

Otherwise, the Magic Wand's only real competitor for strength is the original Doxy Massager (their Die Cast is a bit weaker and also over your budget), but it's got button controls and a PVC head.

https://www.amazon.com/Hurricane-Inline-Fan-Performance-Ventilation/dp/B006Z1JLY4/ref=sr_1_4?keywords=6+inch+hurricane+fan&qid=1554912572&s=gateway&sr=8-4

Its relatively quiet for how much air it sucks

as i understand it a universal motor with brushes is AC/DC compatible

sorry its not a pwm its scr or triac or some crap: https://www.amazon.com/dp/B00U3LD1WA/ref=cm_sw_r_cp_awdb_t1_Bh.JDbH0J22BK

Ipower is not really considered a spend more get more brand around here.

That said I have a cheap Ventec which came with a speed controller and it works fine. Moves some air, I keep it turned down most of the way. It is certainly not smell free, but it keeps it at a reasonable level for my stand alone house. Would not recommend it for an apartment. Not sure if they sell the same bundle in Canada.

Here is what I used. 2 wire shelves. 1 shelf holds 4x 8 card rigs (last rig sits in the front 'exhaust' area on top of a normal PC box). 1 shelf holds the fans that blow on the rigs. Air is blown over the rigs and to the front of the tent, and exhaust fans placed in that area for exhaust.
Tent: https://www.amazon.com/gp/product/B00MB68BEI/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1

Wire shelves:
https://www.amazon.com/gp/product/B00B7E8Y9M/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

Blowers for exhaust (I use 2 of these, exhausted out the window):
https://www.amazon.com/gp/product/B01CTM0LLO/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

Fans for airflow, sitting inside the tent on one of the wire shelves (I have 3 of these):
https://www.amazon.com/gp/product/B004IS6JBY/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

Hope that helps.

Well.. If that's not working you should just buy the cheapest carbon filter + fan on amazon and be done with it IMO.

Although, even with a good filter and fan you have to have some negative pressure meaning that you have to suck out more air than you pull in. If you can't get negative pressure then the smell can leak out. If you have a tent and you get a real fan and filter you'll see the walls suck in when you close the tent and that means theirs negative pressure.

Here's some amazon links.

Filters-
https://www.amazon.com/VenTech-Carbon-Charcoal-Control-Filter/dp/B00QLB5U70/ref=sr_1_9?ie=UTF8&qid=1480987037&sr=8-9&keywords=carbon+filter

https://www.amazon.com/VenTech-Carbon-Charcoal-Control-Filter/dp/B00QLB5U70/ref=sr_1_9?ie=UTF8&qid=1480987037&sr=8-9&keywords=carbon+filter

Fans-
https://www.amazon.com/Apollo-Horticulture-Variable-Controller-Ventilation/dp/B01C6IJSB0/ref=sr_1_11?ie=UTF8&qid=1480987316&sr=8-11&keywords=inline+fan+4%22

https://www.amazon.com/VIVOSUN-Inline-Variable-Speed-Controller/dp/B01CTM0H6I/ref=sr_1_14?ie=UTF8&qid=1480987316&sr=8-14&keywords=inline+fan+4%22

Or just get a whole kit..
https://www.amazon.com/VenTech-VT-IF4-CF4-B-Controller/dp/B005GJ7TFE/ref=sr_1_8?ie=UTF8&qid=1480987446&sr=8-8&keywords=inline+fan+4+inch

Well, my grow is a LOT larger than a closet but the principal is the same.

I have a bigass inline fan that sucks the air from inside the room out into my attic and the carbon filter is attached in the attic.

So basically I am sucking the smell out of the room, thru the carbon filter and out into the attic.

This creates a negative pressure in the room so the smell actually gets sucked BACK INTO the room. You can stand at the door to my grow and not smell a thing.

Your setup should be similar, just with much smaller parts

Ghetto rig it then.

Cut a 6" hole in the top of the rack, use some dryer/ventilation ducting and an inline fan. Most are speed controllable, could also add a temperature based controller.

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Dump the heat back into the same room if it is air conditioned (probably want a return), but likely it is does not have a return - so you can also dump it outside the room. Don't vent outside of your conditioned space or you will be pulling hot air from outside the house due to the negative pressure

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https://www.amazon.com/dp/B07FPFVZTZ/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B07FPFVZTZ&pd_rd_w=FFRBL&pf_rd_p=8a8f3917-7900-4ce8-ad90-adf0d53c0985&pd_rd_wg=eVQaC&pf_rd_r=M58SN78A1FADY51NZDWD&pd_rd_r=20be1fe0-a415-11e9-8d7b-65f6631cf204