In an enclosed space you're going to want to find a way to exhaust the heat from the top, as heat rises. An intake of some kind will need to be allocated low to the ground to catch cooler air that settles naturally at the lowest possible point. Even if it's a passive intake [ i.e.: just a hole ], it should work. Just work out a way to pull the air out from the top, nearest to the light, and you should be fine.

And, like it's been suggested -- work a light schedule that revolves around lights off being during the day, and lights on at night.
Kush Over Reviewed by Kush Over on . Too hot? I have a setup enclosed in a growtent, problem is my temp is now at 92f (33c) I cant seem to find a way of lowering the temp, if i leave the flaps open I get 88f (30-31c) but i dont want to do that anyways. Anyway in-expensive ways to cool the room down? Rating: 5