The video above, by Genteq Motors, gives a very good overview of how your average residential furnace works. For those of us, however, who has no life and would like to know more we will go into a little more detail in this article covering the history of heating homes to the difference between gas and electric.
Air Handler / Furnace
When you have electric heat it is called an air handler. When you have a gas heater it’s called a furnace. Up north you may have an oil burner, but that is also called a furnace. What they all have in common is a fan that circulates air in the house.