how much air exchange for 4x600hps in 10x8?

[spaceboy]

Hi everyone, was hoping somebody could steer me in the right direction here. I have 4 600's in a 10x8 room with 7.5' ceiling. i have 2 hoods in air cooled hoods and 2 adjust a wings, with my filter going into the air cooled which then go out my basement window. Total span is about 9 feet with one slight curve. For a fan am running 737cfm can fan.

Right now I have it running all the time at 70% power. I'm wondering if this could possibly be stressing my plants out and if so what would be sufficient? Should I get another fan? Also should i get some sort of intake fan for fresh air into room? Thanks

 

[187020]

May be too much for a 8in fan and 12in would be overkill...therefore I'd think 10in vortex type blower, passive intake all the way !! Peace!

 

[joe fresh]

i got a small room with 3 1kw hps...i use 12" vortec

 

[Ohmless]

my 3Kw uses an 8" HO can fan combo and is doing just fine. I feel confident recommending that one to you.

 

[spaceboy]

thanks guys, do you u anything else to cool your room besides the fan? Also still really wondering about the stress issue from running the fan all the time. From what I understand that stresses the plants out.

thanks

 

[joe fresh]

as long as the air comming in is fresh and cold, and the exhaust is big enough to pull out the hot air then you should be fine, dont forget to add in some ocilating fans for air movement