DUDE that is an EXCELLENT idea....simple too especially about using outside air to cool and thus eliminate the scent...simple simple. ok soooo now im cutting an ez to repair 6" hole in the floor and drawing cool air from underneth the house thru the reflectors then exhuasting via an exhisting outside vent. all thats left is room cooling that due to the to the above suggestion ...will not be such a large issue so to with the scent. NOW correct me if im wrong but if the room is sealed and im cooling the room with a small window A/C unit and re circulating the same air wont all i need to do is add CO2 and some small wall fans? wont that allow me to use the gas in a more efficient mannor and get better results due to the sealed room??????

PS ...PLEASE ....can someone help me find a water pump that turns itself ON when theres water in the tank and OFF when there is no water left in the tank??? i need help there as this is bustin me sac
Ziggy Stardust Reviewed by Ziggy Stardust on . C02 cooling effect on grow closet Would a steady flow of c02 from a large tank during light hours cool down a small grow room about 15 square ft enough that I could bring a 400 watt hps closer to the plants? Runester Rating: 5