Arlington Geothermal Question: What Is the Difference Between Geothermal and Air Source Heat Pumps?

You probably have heard of air source heat pumps, and you might have also heard of geothermal heat pumps. But you might not known what the difference is between those two types of systems and how they would operate in your Arlington home. Here we explore some of the major differences between an air source heat pump and a geothermal heat pump.

How Air Source Heat Pumps Work

Heat pumps are very energy efficient because they don’t burn any fuel to cool and heat your home. Instead, they just move heat from one place to another. In heating mode, they move ambient heat from the outside air into your home. In cooling mode, they move heat from inside your home to the outdoors. They are called air source heat pumps, because the air is the medium through which their heating and cooling is accomplished. Similar to a refrigerator or the radiator in your car, heat pumps circulate refrigerant through a series of coils. An air pump blows air across the coils. Heat from that air is absorbed into the coils and then moved into or out of your home.

How Geothermal Heat Pumps Work

Geothermal systems are very similar to air source heat pumps with one major difference. Like an air source heat pump, geothermal systems use a series of coils to move heat from one place to another. However, with a geothermal system, the heat is obtained from the ground. If you dig just a short ways into the ground, the temperature there stays consistently 55 degree Fahrenheit no matter what the temperature of the air above it. In heating mode, the geothermal system removes heat from the ground using a series of pipes filled with refrigerant. The heated refrigerant is carried into the home where a heat pump blows air over another set of coils to extract the heat. In cooling mode, the heat pump in the home blows hot air over the coils, it is absorbed by the refrigerant and deposited into the ground outside the home.

If you have any questions about how a geothermal system works or if you would like to know if it is a good option for your Arlington home, then call the experts at Air Novations today!

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