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greater cfm for exhuast?

cfl...KING

Listen my username is from 07 lol
Veteran
ok so i have an intake fan pushing 170cfm an was going to get a exhaust fan but the closet one that will fit pushes 235cfm, is that ok or safe to do? or will it put to much stress on the fans? i can get a intake that is 210cfm but will cost me alot more money because i already have the 170cfm fan. i read some where that its good to have your exhaust fan moving more air then your intake fan but there is a big difference. oh an my grow room is by no means sealed there are cracks in a few places that air could get in. but if i have to i will get the 210cfm fan for saftey
 

FreezerBoy

Was blind but now IC Puckbunny in Training
Veteran
Do you really need an intake fan? I thought CFLs ran fairly cool.
 
freezerboy is right...from the sounds of your setup, a passive intake should do the trick...you want 4 to 1 exhaust to intake. I run a 1200cfm exhaust with no intake fan in a 10' x 10' room...this provides a very nice negative pressure in the room...which in turn makes it impossible for smell to get out.
 

greenhead

Active member
Veteran
Albert Hofmann said:
this provides a very nice negative pressure in the room...

His growroom is not sealed and with leaks, so that might make a difference. If I were him, I'd just seal the room, use passive air intake, and forget about using an intake fan.

:joint: :wave:
 

Maj.PotHead

End Cannibis Prohibition Now Realize Legalize !!
Mentor
Veteran
greenhead said:
His growroom is not sealed and with leaks, so that might make a difference. If I were him, I'd just seal the room, use passive air intake, and forget about using an intake fan.

:joint: :wave:
His growroom is not sealed and with leaks = sounds like my setup and i have negitave pressure

CFL King what you growing in closet small cab rubbermaid ??? i grow in my closet 5x7x8


passive fresh air intake in the bottom

stanely blower fan cooling lights 400w mh 400w hps i pull through a carbon scrubber then lights then through the tsanely and into attick!! the stanely is equal to 250cfm and cost me 39$ at homedepot
 
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