In HVAC, “mechanical air flow” describes your HVAC system’s air handler, ducts, and return vent’s capacity to control indoor temperatures and harmony humidity levels. Additionally, it entails vents to exhaust hazardous gases outside of the house created in the course of the heating process. An expansion valve (also called metering https://elliotzxqck.blogminds.com/the-greatest-guide-to-hvac-28886589