If you have to use the carbon filter then your pretty much down to only one fix. Air conditioning.
killerweed420 Reviewed by killerweed420 on . Heating Problem I've recently expanded my grow closet's lighting. I now have three banks of 10 24 watt CFL that output 1600 lumens (48,000 lumens) as well as a 400 watt hps that outputs 55,000 lumens. This is for a space roughly 1 1/2 x 3 feet, holding six plants. The problem is, its basically turning into an oven. If I close the closet door the temperature at the top of the plants can top out at about 110 degrees (I haven't let it stay that way long enough to hurt the plants). I decoupled the fan Rating: 5