Quote Originally Posted by horsehead
Nice. Please describe your ventilation problems and how you got them under control...
Well originally when I installed my 1000w I thought a inline 425 c.f.m fan dedicated to air cooling the lamp would be enough, but temps were still far from optimal. I then got a dedicated ac for my grow room and I also created better ventilation by creating a exhaust port and installing a 250 c.f.m inductor. All these things make it possible to keep temps to 76 degrees during lights on and 68 degrees during dark. Efficiency in air flow went down when I added my carbon filter but temps are still good.