I have a 4'x4' area, with 1' section for veg, and a 3'x3' section for bloom roughly. I am going to use cfl's for veg, so heat shouldn't be an issue there. The bloom side will have a 400w HPS in a Cool Tube. Do I need a fan to blow through the tube, and do I need to exhaust the hot air through a vent to the outside. The space gets warm, not hot in the summer, and cooler than the rest of the house in winter.

I would apreciate your input and ideas. I am not much of a DIYer. Easy, simple, effective, without overkill. Any thoughts anyone? :jointsmile:
BuzzLightOne Reviewed by BuzzLightOne on . Do I need to vent 400 HPS Cool Tube in a 4'X4' space? I have a 4'x4' area, with 1' section for veg, and a 3'x3' section for bloom roughly. I am going to use cfl's for veg, so heat shouldn't be an issue there. The bloom side will have a 400w HPS in a Cool Tube. Do I need a fan to blow through the tube, and do I need to exhaust the hot air through a vent to the outside. The space gets warm, not hot in the summer, and cooler than the rest of the house in winter. I would apreciate your input and ideas. I am not much of a DIYer. Easy, simple, Rating: 5