Geothermal Heating


In large commercial buildings, the use of multiple geothermal systems allows commercial users to control the climate of each indoor area or zone of a building individually.

The biggest benefit of a commercial geothermal system is that they use 25%–50% less electricity than conventional heating or cooling systems.

According to the EPA, commercial geothermal systems can reduce energy consumption—and 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.

Overall external building aesthetics are improved by eliminating outdoor equipment and additional space is gained in scenarios where a boiler and supporting equipment are eliminated.

Because commercial geothermal systems have relatively few moving parts, and because those parts are sheltered inside a building, they are durable and highly reliable. The underground piping is often good for 25–50 years, and the heat pumps often last 20 years or more.

Geothermal benefits over traditional heating and cooling systems:
  • Lower operating costs: A geothermal system can cut utility bills by 30 to 50 percent compared to conventional heating and cooling systems.
  • Environmental impact: Ground-source heat is naturally renewable and non-polluting.
  • Lower maintenance costs: All equipment is protected indoors or underground.
  • Life span: A geothermal system can have a life expectancy of up to 30 years; ground loops are often manufacturer warranted for up to 50 years.
  • Single system: Geothermal equipment provides both heating and cooling in one system.
  • Indoor comfort: Geothermal systems eliminate the drafts common with conventional forced-air systems.
  • Design flexibility: Geothermal systems can be easily and inexpensively subdivided or expanded to fit building remodeling or additions.
  • Energy efficiency: A geothermal heat pump can move more than three units of heat energy for every one unit of electrical energy used to power the system.
  • Safety: No dangers of gas leaks or carbon monoxide poisoning.