Furnace
A furnace is a home heating product that delivers warm air throughout a home. In a central heating system, the warm air is delivered via a connected system of ductwork.
How does a furnace work?
In a gas furnace (the most common type of furnace used in homes), natural gas is ignited in the burner, and the flames heat up the heat exchanger. The heat exchanger warms up the incoming air, and a blower or air handler sends the warm air throughout the home