Geothermal heat pumps are a type of heating, ventilation, and air conditioning (HVAC) system that uses the natural heat from the earth to regulate indoor temperatures. This technology involves the use of a ground loop system, which circulates water or refrigerant through pipes buried underground to absorb or release heat. The heat pump then transfers this heat to or from the building, depending on the desired temperature. Geothermal heat pumps are highly efficient and environmentally friendly, as they use renewable energy sources and produce fewer greenhouse gas emissions than traditional HVAC systems.