Geothermal Heat Pump
Geothermal heat pumps (sometimes referred to as ground-source or water-source heat pumps) harness the constant temperature of the earth as the exchange medium instead of the outside air temperature. Geothermal systems use an open or closed loop outside instead of a condensing unit. This loop is typically buried outside in your yard—in a vertical or horizontal configuration and transfers heat with a water/ glycol mixture to and from the loop outside and the air handler inside. Geothermal heat pumps are typically referred to as the “greenest” product on the market with high efficiency ratings. Because they utilize the free energy stored in the ground, you can expect to save up to 70% off heating and cooling costs versus conventional systems. They have efficiency ratings, typically called SEER ratings, ranging from 17SEER to 29SEER.