smoothy
Sep 9, 2015, 08:40 AM
Sounds like a homework problem because Joe Average doesn't install their own HVAC systems (too many details need to be calculated the average person does not understand)... and anyone that does... should already know this and why.
ma0641
Sep 9, 2015, 01:59 PM
Follow this link. It is not something easily described here.
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CB4QFjAAahUKEwiq7b2F6-rHAhWFGB4KHUdCCOY&url=http%3A%2F%2Fcontractingbusiness.com%2Fservice %2Fuse-air-changes-calculation-determine-room-cfm&usg=AFQjCNEomp9MX7pOO8Mox8ATOaH-RSN4PA&sig2=R-KzeH4M6WvpFEDsWC0KDQ