I got a 12 buck regular old bathroom fart fan from Lowes for about 12 bucks..then paid 3 bucks for a length of flexible hose which fit it and then you a cut a hole and vent to the room next door. Got about a 4" hole in the bottom of the closet and set up a Wally World high velocity fan near the hole. I try to make both my bad boys shake then the air heads to the fart fan. My babies aint dead yet and know that grow closet has broke a hundred on several occasions. Think I finally got the lights trained to run at night..then I turn the AC on em and let it suck some of that cold air when I get home from work. Comprendeh? Once it cools down in the evening and the lights are near to coming back on I shut off the AC but leave the fans running. If I was gonna run an AC 24-7 it would be cheaper just to buy the stuff than to grow it.
Big Wheel