That crossed my mine. Well, I left about 50% open in the front, and had 2 small fans blowing, one on the light, and one on the plants. Then had the Inline booster bringing in the fresh air, and the temps stayed in the 70-73 range. So I am confident that once I turn on the big 4" Valueline Inline fan, and close up the unit, it we be nice a cool in there. I'm thinking of lowering the light about 3-4 more inches too. Humidity was in the 35-43 range.