2.3c Geothermal Heat Pumps

Feature	According to Energy Star, geothermal heat pumps are similar to ordinary heat pumps, but use the ground instead of outside air to provide heating, air conditioning and, in most cases, hot water. Because they use the earth's natural heat, they are among the most efficient and comfortable heating and cooling technologies currently available. (Image: Grand Valley State University)
Energy Star	Energy Star-qualified geothermal heat pumps use about 30% less energy than a standard heat pump. Plus, they are quieter than conventional systems. Energy Star-qualified brands include: Advanced geothermal technology, Bard Manufacturing, Bryant, Carrier Corporation, Chiller Solutions, ClimateMaster, Eagle Mountain, EarthLinked Technologies, Earthsource Energy Solutions, Earth To Air Systems, Econar GeoSystems, Enertech Manufacturing, FHP Manufacturing, GeoMaster, Heat Controller, HydroHeat, Maritime Geothermal, McQuay International, Northern Heat Pump, Rittling, Trane and American Standard, WaterFurnace International. See current list in PDF.
Example	This geothermal heat pump was included in Louisiana House, the demonstration home built by Louisiana State University.  According to the LSU AgCenter, the pump provides exceptionally energy-efficient heating and cooling, long life and low maintenance.
Data	Profitability of an EPA ENERGY STAR Geothermal Heat Pump Compared to a Standard Air-Source Heat Pump
More	View YouTube video of geothermal system
Tax Credits	Federal tax credit incentives for geothermal heat pumps