How Does Geothermal Heating Work?

January 18, 2019

Geothermal heating has been around for thousands of years. It’s easier on the environment and pays for itself over time. With that being said, a geothermal heat pump can save you so much money in energy costs (while helping the environment) that you will be tempted to install one immediately.

When using Northwest Mechanical, you're getting the top of the line geothermal heating installations with seasoned technicians to get the job done right.     

Do you know how Geothermal Works?

Geothermal heat works a lot like your fridge. Your fridge removes heat from its interior and transfers it to your kitchen. A geothermal heat pump uses the same principle, but it transfers heat from the ground to your house (or vice versa). It does this through long loops of underground pipes filled with liquid (water or an antifreeze solution). The loops are hooked up to a geothermal heat pump in your home, which acts as both a furnace and an air conditioner. Sounds interesting, doesn’t it?

A geothermal heat pump is vastly more efficient than conventional heating systems because it doesn’t burn fuel to create warmth; it simply moves existing heat from one place to another. And because temperatures underground remain a relatively constant 50 degrees F year-round, the system requires a lot less energy to cool your home than conventional AC systems or air-source heat pumps, which use outside air as a transfer medium.

Geothermal Has Real Benefits

Much lower operating costs than other systems. A geothermal heat pump will immediately save you 30 to 60 percent on your heating and 20 to 50 percent on your cooling costs over conventional heating and cooling systems.

Uses clean, renewable energy. With a geothermal heat pump, there’s no onsite combustion and therefore no emissions of carbon dioxide, carbon monoxide or other greenhouse gases. Nor are there any combustion-related safety or air quality issues inside the house.

Can be installed in both new construction and retrofit situations. However, it’s a lot more expensive in retrofits requiring ductwork modifications.

Much quieter than other cooling systems. There’s no noisy outdoor compressor or fan. The indoor unit is generally as loud as a refrigerator.

Low maintenance and long-lived. The indoor components typically last about 25 years (compared with 15 years or less for a furnace or conventional AC unit) and more than 50 years for the ground loop. The system has fewer moving parts and is protected from outdoor elements, so it requires minimal maintenance.

Want to know more about geothermal heating? Contact us today to get more information and a quote!


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