pipster
Active Member
I have a grow box, with a 400w HPS. Box demisions are 4' h x 4'w x 3' d, i have a inline fan bringing in air from outside, and a exhaust fan near the top. I turned on the lite yesterday and put one of those remote thermoneters in the box, and the temperture got up over 100, the strange thing is the exhaust air was cool coming out of the box, and it didnt feel all that hot when i opened the box. Any help on this would be greatly appreciated, I have plants that need to go into the flower stage, but i dont want to kill them.