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The Smart Guide to Geothermal

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The Smart Guide to Geothermal: How to Harvest Earth’s Free Energy for Heating & Cooling
by Donal B. Lloyd

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


"After 20 years as consultant, CGD and IGSHPA instructor, and a vetted Geo Junkie, this is a very rare, not to mention 'the best', holistic and non-technical presentation of technical information I've seen. Within the past hour, I have decided to order another 20 for routine use in my 'ramp up' of new clients. A few bucks as a gift will save me weeks of education."
— John Geyer, John Geyer & Associates - Vancouver, WA

"This book has helped give me the knowledge and confidence to move forward. It took geothermal from something too good to be true to something too good to ignore.
— Louis S., New York homeowner

"Thank you, Don Lloyd, for writing a geothermal book that is accessible for homeowners. Educating consumers about geothermal heat pumps is the responsibility of everyone in the geothermal industry; Don's book gives us another tool to use as we try to improve the way we heat and cool our buildings."
— Brian Hayden, HeatSpring Institute

  • 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.


ISBN 978-0-9773724-8-5
192 pages • 5½ x 8½ paperback
illustrated • 2011

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