Reddit mentions of VIVOSUN 4 inch Inline Duct Fan 100 CFM, HVAC Exhaust Intake Fan, Low Noise & Extra Long 5.5' Grounded Power Cord

Absolutely, here we go:


Essential Hardware

$80 Clones - $20 from dispensary.

$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.
  
  $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.
  
  $90 4" Inline duct fan and Carbon Filter
  
  
• 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.
  
  $10 - Ducting/Clamps from ACE
  
  $21 Osculating Fan
  
  
• I have it on a small stand 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.
  
  $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.
  
  
  $13 Ph Meter
  
  $12 TDS PPM meter
  
  $9 Soil Moisture, Light, Ph meter - Does it's job
  
  $9 Ph Control Kit
  
  $14 Ph Calibration solution
  
  
• For the life of the Ph meter, I store the tip in 7.0 solution that I pour into the cap. Good to have on hand for calibration.
  
  $6 Spray Bottles (Did not use these much, only very early during transplanting.)
  
  
  
  
  $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)
  
  
  $18 Hygrometer for Temp/Humidity
  
  
• Worth it to get the wireless monitor so you're not opening the tent all the time)
  
  $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. Ocean forest was sitting around.
  
  Nutrients: $165
  
  
• 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 that $100 after tax.
  
  
• Grow A, Grow B, Bloom A, Bloom B, Dr Repair, Potash, Silica
  
  
• I purchased Key to Life - Uptake For just shy of $20. Great for calcium uptake.
  
  
• Cyco Grow XL Super Phosphoric Acid was $45 - not cheap for 100ml but I think the potential yield improvement will cover that cost, especially over 3-4 grows which I expect to get out of the bottle.
  
  $13 - Scrog net: for something like 50-100ft of plastic garden fence from Home Depot. Using a lot of it for a garden.
  
  
  $15 - Miscelaneous: Eyedroppers, duct tape, zip ties, and odds and ends: Call it $15.
  
  
  
  
  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.
  
  
  Sorry for the formatting! I'm going to do a big post write up and this is a great place to start at least. Thanks for the motivation.
  
  
  
  
  

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.

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

As an example for a smallish grow:

2 x 2 x 4 Tent: https://www.amazon.ca/gp/product/B074H5DKPY/ref=ppx_yo_dt_b_asin_title_o01_s00

Lights: https://www.amazon.ca/gp/product/B0752CL6KJ/ref=ppx_yo_dt_b_asin_title_o01_s00

Exhaust fan: https://www.amazon.ca/gp/product/B01C82SYZ0/ref=ppx_yo_dt_b_asin_title_o05_s00

Ducting: https://www.amazon.ca/gp/product/B00EPE3XHY/ref=ppx_yo_dt_b_asin_title_o05_s00

Timer: https://www.amazon.ca/gp/product/B00MVFF59S/ref=ppx_yo_dt_b_asin_title_o00_s00

Total cost: ~270 CAD

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.

So you think I should just have one of these VIVOSUN 4 inch Inline Duct... https://www.amazon.com/dp/B01C82SYZ0?ref=ppx_pop_mob_ap_share on top and just have passive airflow at the bottom? It is only one plant but will that be enough airflow

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.

First hit on 4" duct booster fan [amazon.ca](
https://www.amazon.ca/VIVOSUN-Duct-Booster-Fan-100CFM/dp/B01C82SYZ0/ref=sr_1_1?ie=UTF8&qid=1479753535&sr=8-1&keywords=4%22+duct+booster+fan)

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

I just use a 15$ 4” intake booster fan. Also made by vivosun.
VIVOSUN 4 inch Inline Duct... https://www.amazon.com/dp/B01C82SYZ0?ref=ppx_pop_mob_ap_share

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

inline fan

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.