Flowering rooms and vegetative rooms have different temps assuming they are each sealed. Personally I would consider having a exhaust fan for each room with a variable speed controller. It will give you more control with your temps. Always go bigger then tone back. It's hard to make stuff more powerful though. You will want to have bigger lights in the flowering room which will cause more heat. A veg room, depending on you climate and lighting choice may not even need an exhaust. Passive intakes are good though in both rooms though (like a breath of fresh air).
pipefitter Reviewed by pipefitter on . passive air intake vents ? where is the best place for the passive air intake vents? i have a romm , 5x13 split into 2 rooms , veg 5x5 and flower 5x8 , i plan on to share the output fan, bewteen the rooms, and was wondering ,about how large do the passive intake vents need to be? and should i put them in the waLLs? or use the ceiling in between the rafters? , Rating: 5