Vent fans and a/c at the same time
At home we find it unnecessary in summer to run the het pumps on the own stairs level usually. We have a huge vaulted ceilign on one side and the cold a/c air sinks down, and sometimes makes it really...
Forum Discussion
I understand what he is saying but I think he's overlooking something important
IF you are not "Disturbing" the air (running a fan) hot air has a tendency to hang out near the ceiling while cooler air hugs the floor. His thinking is if we open the roof vent and turn on the fantastic/Maxx air fan it can "Suck out" the hot air.. Leaving only the cooler for the A/C to work with.. And in some cases this is a very good plan.. If, for example it's 80 out and 90 in
But if it's 80 in and 90 out what will be replacing the perhaps 85 Dergree ceiling hot air? 90 degree outside air. So the net gain is -5 in this "out of the blue" example.
So the only time I would consider that is if the outside air was cooler than inside.. THen it might work.. Right now it's 2 degrees warmer out.
IF you are not "Disturbing" the air (running a fan) hot air has a tendency to hang out near the ceiling while cooler air hugs the floor. His thinking is if we open the roof vent and turn on the fantastic/Maxx air fan it can "Suck out" the hot air.. Leaving only the cooler for the A/C to work with.. And in some cases this is a very good plan.. If, for example it's 80 out and 90 in
But if it's 80 in and 90 out what will be replacing the perhaps 85 Dergree ceiling hot air? 90 degree outside air. So the net gain is -5 in this "out of the blue" example.
So the only time I would consider that is if the outside air was cooler than inside.. THen it might work.. Right now it's 2 degrees warmer out.
