How It Works

See geothermal at work. Includes the anatomy of a geothermal heat pump, basic concepts and descriptions of closed and open-loop systems.

Anatomy of a Heat Pump

Instead of producing heated or cooled air, a geothermal system moves heat from one place to another.

Geothermal Concepts

The science behind geothermal heat pump systems is fairly simple - all you need to know are a few basic concepts.

Closed Loop Systems

In a closed-loop system, the heat exchanger - a continuous loop of piping - is buried underground.

Open Loop Systems

An open loop system uses water from a surface or underground source - such as a pond, lake or well - instead of an antifreeze solution.