Also an actic vent thermostate (hard to fine sometime but only cost 10 bucks) will turn on the fart fan when the temperature rises above a set degree and turn off when it is below that set degree.

CAP makes one for 77.00 bucks too.
Zandor Reviewed by Zandor on . what ventilation system should i be looking for? O'k guys I have a few question concerning my grow room,I was wondering what I could use to dump the heat in the room and at the same time draw fresh air back into the grow room......here is my set up... The room is 9ft long 5ft wide and 8ft high my grow table that I have my plants on is about 5ftx4ft under a 1000w hps I am into my 3rd week of flowering and boy is the room getting hot! alot hotter then I anticipated!,I keep opening up the door to the grow room and at most times I leave Rating: 5