One of the hottest topics of the green movement is geothermal. Homeowners and professionals alike are becoming increasingly interested in learning more about geothermal heating and cooling technology.

However, despite the current buzz, it’s not a new technology. Geothermal has been around for more than 50 years although it’s significantly improved over the decades. Right now, more than one million geothermal systems have been installed in the United States in both residential and commercial applications.

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Source: Proud Green Home, Teena Hammond

March 9, 2012