Geothermal Heating and Cooling
Geothermal Energy Can Save You Up to 60%
The biggest benefit of geothermal heating and cooling is the fact that they use 25%-50% less electricity than conventional heating and cooling systems. This translated into a geothermal heat pump using one unit of electricity to move three units of heat from the earth. According to the EPA, geothermal heat pumps can reduce overall energy consumption and their corresponding emissions; up to 44% compared to air-source heat pumps and up to 72% compared to electric resistance heating with standard air-conditioning equipment. Geothermal heating and cooling systems also improve humidity control by maintaining about 50% relative indoor humidity, making geothermal heating incredibly effective in humid areas.
Geothermal heat pump systems allow for design flexibility and can be installed in both new and retrofit situations. Because the hardware requires less space than that needed by conventional HVAC systems, the equipment rooms can be greatly scaled down in size, freeing space for productive use. GHP systems also provide excellent “zone” space conditioning, allowing different parts of your home to be heated or cooled to different temperatures.
Because GHP systems have relatively few moving parts, and because those parts are sheltered inside a building, they are durable and highly reliable. The underground piping often carries warranties of 25–50 years, and the heat pumps often last 20 years or more. Since they usually have no outdoor compressors, GHPs are not susceptible to vandalism. On the other hand, the components in the living space are easily accessible, which increases the convenience factor and helps ensure that the upkeep is done on a timely basis.
Because they have no outside condensing units like air conditioners, there’s no concern about noise outside the home. A two-speed GHP system is so quiet inside a house that users do not know it is operating: there are no tell-tale blasts of cold or hot air.