5 Facts You Didn’t Know About Your Furnace


We love repairing and maintaining furnaces in homes around central Iowa, It’s what we do for a living. With that being said, here are 5 facts you may not know about furnaces.


It’s the most common heating system

Most homes in the U.S. are heated by forced air furnaces. Gas furnaces are the most popular because of their efficiency (and natural gas costs less). They can also burn propane, oil, or use electricity.


Furnaces have been around for a LONG time

The first furnaces were built in 1200 B.C. by the ancient Romans and were called “hypocausts.” They were the first central heating systems. It was an open space below a floor that was heated by gases from a fire, allowing the passage of hot air to heat the room above.


Furnaces are durable

Nobody can guarantee the longevity of a furnace, but they can last 20+ years IF they are maintained regularly. Because furnaces typically last awhile, many homeowners know very little about them.


Furnaces have 3 main components

  • Blower: Sends air throughout the house.

  • Burner: Allows for efficient burning of the gas (or other fuel) to create heat.

  • Heat Exchanger: Separates the deadly combustion gases from the air we breathe.


Furnace installations are regulated

Gas furnaces are widespread, so proper installation is a matter of public safety. There are national guidelines and rules put in place by local governments to ensure a safe installation, guarding against things like fires and explosions.


Call today to schedule your heating system tune-up: 515-965-7272 or email us at office@72degrees.com.

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