How it Works

Geothermal heating and cooling systems use the natural and nearly constant temperature of the earth to heat in the winter and cool in the summer. This is accomplished with a compressor or heat pump unit, the liquid heat exchanger medium, and the air delivery system.

Geothermal systems quite simply extract heat from the ground or ground water and transfer that heat to a refrigerant, then distribute the heat into the structure with a forced-air or hydronic system. In cooling, geothermal systems take heat from the structure, transfer the heat to the refrigerant, then transfer the heat back to the water or loop fluid. This works the same as a standard air conditioner, except a geothermal system uses water or loop fluid at a constant temperature (average 50 degrees) instead of varying outdoor air.


In other words, it’s like heating and cooling your home when it’s 50 degrees outside – all year!