What Is a Geothermal Heat Pump & How does it work?

Part 2 of Geothermal Heat Pumps. Geothermal heat pumps can reduce energy consumption—and corresponding air pollution emissions—up to 44% compared to air source heat pumps and up to 72% compared to electric resistance heating with standard air-conditioning equipment. (Source: EPA, 1993) Geothermal heat pumps are viable nationwide. They use the Earth as a heat sink […]

Types of Air-Source Heat Pumps

Part 2 of Air-Source Heat Pumps. A split-system heat pump heating cycle You can use a central heat pump to heat and cool a whole house. Most central heat pumps are split-systems—that is, they each have one coil indoors and one outdoors (see Fig. 1 below). Supply and return ducts connect to a central fan, […]