Geothermal heat pumps use 23-44% less energy than the most popular air-source heat pump. The U.S. Environmental Protection Agency has estimated that a Geothermal heat pump can save a typical family 30 – 70% on heating costs and 20 – 50% on cooling costs.

Geothermal heat pumps use underground pipes filled with either a heat-transfer fluid or water. This fluid carries heat from inside the house and releases it into the ground in summer to cool your home; in winter it draws heat from the ground to heat your home. There are three main parts of a geothermal heat pump system: the geothermal heat pump, which moves heat between the building and the fluid in the earth connection; the earth connection, which transfers heat between the earth and the fluid inside it; and a distribution system, which delivers heating and cooling to the building.

A 2000 square foot home with a tight building envelope (well sealed and insulated) was recently estimated to be operable for as little as $1 per day to heat and cool the home. Geothermal heat pumps use 23-44% less energy than the most popular air-source heat pump.