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Discover why ground-source heat pumps are the best choice for heating and cooling new or existing homes in any climate and how this reliable, silent, nonpolluting way of extracting free energy from the Earth saves money year after year. Then go a step further and learn the simple science behind this proven technology.
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Author: Donal Blaise Lloyd
Item Number: 7676
We stand by our products. If you are not fully satisfied at any time with your purchase, simply return the item and we will issue you a full refund. No questions asked. Shipping and handling is nonrefundable.