Introduction to HVAC Basics - Download PDF

What Is an HVAC System?
HVAC stands for heating, ventilation, and air conditioning. Your home’s HVAC system includes all the equipment responsible for the heating, cooling, and air circulation within your home. The HVAC basics encompass the furnace, the air conditioner, and the ductwork that connects them throughout your home.

While most people think of the HVAC fundamentals as heating or cooling, the ventilation component is essential. Your HVAC equipment forms a closed system. The air within your home is drawn into the HVAC equipment, where it is heated or cooled, filtered, and then returned to your living space.

The air filtration function and ventilation are critical to maintaining your indoor air quality. Dust, mites, pet dander, and various allergens and particulates are filtered out of your home’s air as it is circulated by the “V” in HVAC. Further, the ventilation also helps control moisture levels and humidity in the home while helping to remove odors. The ventilation equipment also manages carbon dioxide and other pollutant levels.

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