A geothermal heat pump is the most efficient way to heat and cool your home. Though the upfront costs can be significant due to installation of ground loops, the minimal environmental impact and money saved on utility bills offer exceptional returns. It circulates fluid through a network of pipes buried underground (a ground loop). In winter, the heat pump extracts heat from the earth and transfers it into the building. In summer, the process reverses, transferring heat from the building to the cooler earth. Geothermal heat pumps are a more expensive investment than traditional heat pumps, but they offer significant long-term energy savings and environmental benefits.