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:

• 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 calculating increased home values;
• Who is using geothermal energy, including the author's firsthand experiences, home profiles in the US and Canada, as well as an overview of commercial/institutional projects;
• How solar electricity can be used to power the system, plus other future trends;
• Unraveling the science and technology of geothermal heat pumps (GHPs);
• Understanding GHP performance standards, ratings and warranties in the US and Canada;
• Comprehensive appendix with helpful resources; (manufacturers, associations, etc.) and a career section for those interested in entering the field.

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