What is a GeoThermal Heatpump?

Because underground temperatures do not change and remain relatively constant year-round, a geothermal system, which consists of an indoor unit and a buried earth loop, capitalizes on these constant temperatures.

The winter, fluid circulating through the system’s earth loop absorbs stored heat and carries it indoors. The indoor unit compresses the heat to a higher temperature and distributes it throughout the building. In the summer, the system reverses, pulling heat from the building, carrying through the earth loop and depositing it in the cooler earth.

Why are geothermal heat pumps more efficient than air source heat heat pumps?

The geothermal system cycles water from a well, pond, lake or river, or water piped through underground plastic tubing, to warm or cool the heat pump’s refrigerant. Liquid such as water or an antifreeze solution is a much better heat transfer medium than air. Overall, the liquid medium for heat transfer is about 30% more efficient than air.