problem with temps in attic

element2k10 · Apr 15, 2009

hey guys im growing in a 2x2x4 box that is in an attic the exaust o the box is hooked up to 2 inline duct fans 150cfm a piece the intake is drawing air from the outside by a computer fan 65 cfm and i am running 5 27w cfls (100w Equiv) my temps are fine now because it is at 80 but summer is comming and i knw the temps will raise and i have a 400w hps which will get hot as hell anyway to keep it cool? other than what ive tried should i add more cfm to the exaust? or intake?

docd187 · Apr 15, 2009

element2k10 said:
hey guys im growing in a 2x2x4 box that is in an attic the exaust o the box is hooked up to 2 inline duct fans 150cfm a piece the intake is drawing air from the outside by a computer fan 65 cfm and i am running 5 27w cfls (100w Equiv) my temps are fine now because it is at 80 but summer is comming and i knw the temps will raise and i have a 400w hps which will get hot as hell anyway to keep it cool? other than what ive tried should i add more cfm to the exaust? or intake?

this is a common problem with attic growing. getting bigger intake and exhaust fans will help but may not be enough. if you can, try and get a cool tube reflector for the hps light. another thing is trying to put in an ac unit and an oscillating or box fan.

element2k10 · Apr 15, 2009

the hps is in a cool tube which is by the two inline they are all connected
Box->cooltube with hps->2 inlines_>out of attic the the exaust hole is 4 in and the inake is 6 in. and has an computer fan (120mm) bring in air from the outside through the hole in the roof

problem with temps in attic

element2k10

Well-Known Member

docd187

Well-Known Member

element2k10

Well-Known Member

Similar threads