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The Smart Guide to Geothermal: How to Harvest Earth's Free Energy for Heating and Cooling

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$9.99
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Discover why geothermal heat pumps are the most energy-efficient technology for heating and cooling, and how all homes—new or retrofit, in hot or cold climates—can use this reliable, silent, non-polluting way of extracting free energy from the earth.

Contents Include:

- Geothermal system options, including open-loop, closed-loop and DX configurations, using horizontal and vertical earth loops;
- The importance of finding a qualified contractor;
- Costs, tax credits and payback issues, plus cal...