Im gonna be using a cooltube with a 250w hps I was wondering if I would be able to exhaust the hot air from one side of the cooltube with a $30 duct booster fan and leave the other open and just intake air from the growroom also does a 250w give of alot of heat I wont really have a way to vent the hot air outside the room my growroom will be in a closet in my room about 3.5 x 3.5 6ft high would heating be an issue for me? could I ventilate the hot air upwards towards the ceiling and have fans cool down the growroom the heat is my main problem because the spots i can grow are limited and I cant have 10ft of ducting running through my house to cool down the growroom