The temperature of the ground, about 6-10 feet below the surface, remains relatively constant all year round.

This natural heat is collected through a series of pipes, called a ground loop, which is installed below ground and filled with water and an environmentally friendly fluid. The length of pipe required is determined by the size and design of the home or building – the bigger the building, the longer the loop. The fluid is circulated through the loop where it exchanges heat with the ground – in the same way your hand will exchange heat with a hot cup of coffee or a cold glass of water. The cooler surface will always be heated by the warmer one. The warmed fluid continues to circulate from the ground to a smart machine called a heat pump.

The heat pump increases the heat from the fluid in the loop by compressing it, and then transfers it into the air stream, where a blower distributes heated air through the ductwork just like a furnace does. During the summer months, the system is run in reverse to provide air conditioning. Instead of putting heat into the air stream, the heat pump draws it out and transfers it into the ground loop. The warmer fluid exchanges its heat with the cooler earth and there it remains until needed again in the cold seasons.

Your CleanEnergy™ system generates enough heat for your building's hot water system too. When connected to the hot water tank, a portion of a home or building's hot water needs can be provided. The heat pump system can also be designed to transfer the energy into water to operate a radiant floor heating system. On sites that have a suitable nearby body of water such as a lake or pond, the system economics and efficiencies can be further enhanced by installing the loop in the water as an alternative to drilling or excavating to build the ground loop.