Closed-loop systems should only be installed using the appropriate high-density polyethylene pipe. Properly installed, these pipes will last over 50 years. They are inert to chemicals normally found in the soil and have good heat conduction properties. PVC pipe should never be used.
No. The Antifreeze solution used in loops that operate at low temperatures will keep it from freezing.
Yes. Some types of geothermal heat pumps can save you up to 50 percent on your water heating bill by pre-heating tank water.
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