YesiCannabis,
How did you solve the problem? I have a similar room with a 600w HPS and the temps are in the high 80's low 90's. I have a 4" intake fan drawing air from a open window and a 4" exhaust pulling air from the room and out through a chimney. I also have a oscillating fan for circulation but still can't cool the room.
Can you help?
Swede.
Hi Swede, firstly you should consider Fear's advice, hes a great advisor.
Secondly in this thread you will find a link posted by Rural GrowOp, looks amazing but if like me your skint then its hole cutting time.
Right, sucking in air from a chimney is not a good idea imo, tryed it but didnt like it, the chimney would make a much better place to exhaust.
Location of in & out takes, you need your intake near the floor, & your out take must be as high up as possible.
Make sure your in-take is getting its air from a cool place.
Your in-take must be bigger than your out-take in a small room.
My room has a 7 inch in-take & a 5 inch out-take.
This next idea is right off the wall but it could solve your problem until you can get better equiptment, but try it at your own risk.
From your filter attach some ducting, split that ducting into 2 ducting pipes (sealed air tight) & then connect both pipes to the in-line fans (one to each pipe) making sure both fans are sucking through the filter, cut an extra hole for the second pipe & fit it, now you have a duel exhaust.
Remember the exhausts must be up high.
Next on your desktop fan disable the oscillating feature, use cardboard (or simular) to make a funnel & attach it to the circumference of the grill so when the fan is on the air is blown through the funnel & into your growroom via the hole where your in-take fan was. (obviously the desktop fan & funnel go outside your growroom)
Hope these ideas help you get it cool enough Swede ;)
