How do I keep my 20' x 30' garage cool enough to flower in without my plants going nuts, my garage is like 100 or close to it and my plants are not happy. What kind of air conditioner do I buy if I'm low on cash? Currently got a 1000 watt hps, but I'm not running the exhaust from the fan outside because it feels like the air temperature and not hotter, would it make a difference? What about having fans that take in outside air at the bottom, and vent the hot air at the top?