The South Carolina Lowcountry’s Best Geothermal Systems, with Morelli
Geothermal systems are an exciting alternative energy option in both heating and cooling applications. The science behind geothermal and a quick description of key components is below. To start, the word geothermal gives a clue to its meaning: “geo” means “earth” and “thermal” means “heat”.
Quick Geothermal Background
A geothermal system uses water-based heat pumps located around the residential or commercial space that transfers heat from one space to another to heat or cool a building. In the winter, the earth supplies heat, acting as a heat source. The home or business is a heat sink, accepting the heat when it’s cold outside. The source and sink switch in the summertime to effectively cool a building instead of heating it.
The ground certainly feels cold in the winter and hot in the summer. How can the earth supply heat when it’s frozen and accept heat when it’s steaming? Simple: look deeper. About 200 feet below the ground, the earth stays at the same temperature all year round. It’s relatively hotter than the surface during the winter and colder than the surface during the summer.