I am looking for an approximate percentage, that I am able to back up that is the amount of a buildings electrical usage that is HVAC. The DOE says between 40 and 60% any agree with that?
If I have net rentable area of the office building and total cfm of fresh air fans how would I determine air changes? The building has 369k and the total cfm of osa intake and exhaust is 12k. Additionally I have an 8' x 12' louvre that supplies unconditioned fresh air x 2.