Geothermal Earth Loops
Closed-loop Closed-loop systems circulate a water-based solution through a "loop system " of small-diameter underground pipes made of high-density polyethylene. They can be installed horizontally, vertically or in a pond.
- Horizontal Loop is often used when adequate land surface is available. Depending on geothermal system needs and space available, pipes are placed in trenches that range in length from 100 to 400 feet.
- Vertical Loop is an ideal choice for a geothermal heat pump when there is limited land surface. Well-drilling equipment is used to bore small-diameter holes from 100 to 400 feet deep.
- Pond (Lake) Loop is very economical to install when a large body of water is available for use by the geothermal heating and cooling system. Coils of pipe are simply placed on the bottom of the pond or lake to capture the geothermal energy.
Whether the system is open or closed, heat is transferred to or from the structure, regardless of outdoor temperature, to provide year-round comfort.
More informaition on Geothermal Systems & How Geothermal Works.
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