View Full Version : Intake and exhaust fans
Tiny420
06-14-2009, 08:19 PM
Where would be a easy place to get these?
Any help and tips about how to put them in, where to get them, anything will help.
fluid69
06-14-2009, 09:34 PM
what size fans are you looking for?
Tiny420
06-15-2009, 04:07 AM
Not to big maybe 4" or bigger
fluid69
06-15-2009, 04:22 AM
cool, I gotta couple of links for ya. the first one is a 120mm DC computer case fan. I'm currently using one of these, works great, also very quiet. all you need to hook it up is an old ac adapter.
Thermaltake Silent CAT 120mm Case Fan - White A2329 at TigerDirect.com (http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=3180427&CatId=802)
the second one is an ebay store. when I upgrade I might go with these guys. (p.s. they have crazy deals on lights too.)
eBay Store ΓΆβ?¬β?? High Tech Garden Supply: Search results for. (http://stores.shop.ebay.com/High-Tech-Garden-Supply_Fans-Blowers-Air-Cooling_W0QQ_fsubZ17QQ_sidZ141632882QQ_trksidZp463 4Q2ec0Q2em322)
and here's another site I came across, I've not dealt with these guys but thought they had some good deals.
Suncourt 4 Inch In-line Duct Booster Fan w/powercord - Businesslights.com (http://www.businesslights.com/suncourt-inch-inline-duct-booster-fan-wpowercord-p-2072.html)
hope this helps.:thumbsup:
sp3ct0r802
06-16-2009, 04:00 AM
home depot has 4" 50 cfm duct exhaust fans for $12
xoxide.com has computer fans of all sizes
Tiny420
06-16-2009, 11:19 PM
Will the duct fans work good?
Im working with a 4x4x2 box
fluid69
06-17-2009, 12:57 AM
you need to check this thread out, it will help you determine the right size fan.:thumbsup::D:thumbsup:
http://boards.cannabis.com/indoor-growing/132514-noobs-guide-growroom-set-up-work-progress.html
HARDDON
06-19-2009, 06:51 AM
Depends on how big bulbs you go with.
You generally only need or want exhaust...not intakes.
Go with passive intakes...2 small one way flaps for each 4" fan. Do not use computer or cpu fans. Get a real exhaust fan from THD and place it highest in the box and place your intakes lowest in the box.
You want to develop negative pressure so you are sucking in cool bottom air and expelling higher hot air. Everything else must be tight for this to work.
Be sure and get some of that pre-filter black fiber stuff from THD as well (Near the air purifiers.) you DO want to filter the incoming air PRIOR to getting it in your grow box. Wrap the filter and clamp it on or tape it on the intakes. It also will help darken the light escaping.
Good Luck
ForgetClassC
06-19-2009, 03:28 PM
get a inline duct booster fan, they are awesome, and for an 8" one at HomeDepot I think its like 29.99, cant beat that, and it moves 210cfm, that aint bad, get 2 of those and you almot have a $300 fan, works for me.
NaturalALiasClifford
06-19-2009, 05:21 PM
Nice info Hardon and ForgetClassC
how about a bathroom fart fan from the hardware store, variety of sizes, quality, level of noise, prices.
just a thought...
HARDDON
06-19-2009, 05:30 PM
NO bathroom fans.
Too loud.
Too expensive.
Over Kill.
The round inline fans at THD are the way to go.
Tiny420
06-19-2009, 09:40 PM
get a inline duct booster fan, they are awesome, and for an 8" one at HomeDepot I think its like 29.99, cant beat that, and it moves 210cfm, that aint bad, get 2 of those and you almot have a $300 fan, works for me.
Im thinking about getting one of those.
GaGrown
06-29-2009, 09:36 PM
home depot has 4" 50 cfm duct exhaust fans for $12
xoxide.com has computer fans of all sizes
Just went to Depot today and bought 2 50cfm bath fans and the exhaust access is 3 inch.. 100 cfm and better are 4 inch outlets.. Noisey too.. Depends on how many sones they are rated. the less sones the quieter the fan...
Ga Grown!
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