MellowFellow
Active Member
Hello everyone, great forum you have here...I'm hoping someone can help me out with my question, I'd really appreciate it!
My friend is trying to figure out how much CFM fan is needed for a 5 x 5 x 7.5 (Total 187.5 cubic feet) room.
A thermostat does not control the fans. The exhaust fan is running 24/7, and the intake fan runs when the light is on only. He read that a full air exchange under 5 minutes is optimal, but that applies to fan systems that are being controlled by thermostats (fans that go on and off according to temperature) he isnt sure if the same rules apply for fans that run continuously. How do I figure out the right amount of CFM fan needed for his room?
Also, how will the speed of air exachange affect the co2 that's being released in to the air....He is concerned that the extra co2 he's putting in the room will be sucked out before it has a chance to do it's magic on the plants. Any advice is much appreciated.!!
My friend is trying to figure out how much CFM fan is needed for a 5 x 5 x 7.5 (Total 187.5 cubic feet) room.
A thermostat does not control the fans. The exhaust fan is running 24/7, and the intake fan runs when the light is on only. He read that a full air exchange under 5 minutes is optimal, but that applies to fan systems that are being controlled by thermostats (fans that go on and off according to temperature) he isnt sure if the same rules apply for fans that run continuously. How do I figure out the right amount of CFM fan needed for his room?
Also, how will the speed of air exachange affect the co2 that's being released in to the air....He is concerned that the extra co2 he's putting in the room will be sucked out before it has a chance to do it's magic on the plants. Any advice is much appreciated.!!