Quote Originally Posted by HARDDON
Lights are going to raise temps...you can't avoid that.

Energy = HEAT no matter whether it's radio frequencies or light frequencies.

With those big vortex or canfans, you will need and want more than ONE passive intake. You will need and want several.
Thanks for the responses, I'll be using a 420m3/hour RVK fan and dialing it down. From experience, the 175m/hour are just too noisy working flat out consistently, I don't know how the fan will sound if I dial it down but I'm hoping it will make a difference.
MegaOctane12 Reviewed by MegaOctane12 on . Ventilation Question Ventilation question I need answering, two potential setups, which one would work better? 1) Carbon filter at the top of the room, connected directly to an extraction fan. Fan sucking air through the filter, blowing air through ducting into an air cooled reflector, ducting connecting the adjacent end of the reflector taking air out of the grow room. 2) Carbon filter at top of the room, filter connected directly to ducting, ducting connected to air cooled reflector, adjacent end of Rating: 5