
HVAC Functions and Uses

The furnace and water heater are part of a system called the HVAC. The term HVAC stands for heating, ventilation, and air conditioning and all these functions control the air quality and temperature within a home. This is especially important during winter and summer, the temperature extreme seasons. But they’re also important during spring and fall.
Heating is just one component of the HVAC system. Air conditioning is another. Air conditioning is often controlled by a unit out back or a window unit,