HVAC stands for Heating, Ventilation, and Air Conditioning. HVAC refers for heating and cooling of both residential and commercial buildings, as well as the many systems utilized to move air between indoor and outdoor locations. The systems that keep you toasty warm in the winter and cool and refreshing in the summer. They are also the systems that filter and clean indoor air to keep you healthy and maintain comfortable humidity levels.

An HVAC system serves a purpose beyond than simply heating or cooling a space. Instead, it improves interior air quality and provides comfort for everyone inside a building. While HVAC systems come in a variety of shapes and sizes, they all start with the same basic components.

The air return, filter, exhaust outlets, ducts, electrical elements, outdoor unit, compressor, coils, and blower are the nine components of your HVAC system that you should be familiar with.