Conventional geothermal is using latent heat stored in the crust of the Earth from the sun. Now to clarify, I am not talking about active geothermal (often called geothermic) heating systems, like they have in Iceland and other areas where there is thermal activity right near the surface of the Earth's crust.
The crust of the earth maintains the average temperature of that location annually, usually between 42 and 75 degrees Fahrenheit. It seems that geothermal systems are the first building block that people are using with their sustainable houses.Īt this point you may be thinking, "What is a geothermal heating system?" Geothermal heating systems use stored heat from the earth's crust in conjunction with heat pump technology to move and amplify heat instead of making heat. I am going to focus on what is the most prevalent "alternative" system for homes: geothermal and radiant heating systems. The debate includes technologies like radiant floor heating, geothermal, photovoltaic (solar electric) and hydronic solar water heating systems (solar thermal), wind turbine technology, methane accumulators for septic systems and other biomass based energy collectors, etc. The answer to this question may be influenced by utility cost, natural resource availability, whether the building is new or preexisting, and the quality of the construction. There has been a lot of debate about which "sustainable" products are the best "value".
How Geothermal and Radiant Heat can Save Money and be More Comfortable by Pete Frank
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