Oh, the exhaust fan has a max cfm of 80 and is routed perfectly straight up through 5' of ducting. I have both a regulator to dial up/down the speed of the fan as well as thermostats to control the fans if needed but neither are hooked up currently.

The intake on the left side of the box is really connected to 20" of flexduct to keep it right at the bulb for fresh cool air.
redtails Reviewed by redtails on . Input needed Ok, so let me preface this by saying I live in an urbanized desert, where the temps can be unstable and typically high(even with A/C), as well as avg humidity <20%. Also the components I've listed in the pic are what I already have. I'm trying to make it work with what's available, as I'm on a limited budget, so please don't start recommending something unnecessarily too expensive for this sized grow like a 400w cooled HPS with a 6" vortex fan. I'm trying to rework the ventilation system Rating: 5