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    http://www.health.state.mn.us/divs/eh/wells/geothermal.html

    Geothermal Systems for Your Home

    Heating and cooling powered by ground-source heat pumps
    by Jason Wiskerchen

    Monday, August 27, 2012, 6:01 PM

Explore using a geothermal system to heat and cool your home.

http://www.urbanfarmonline.com/sustainable-living/green-energy/geothermal-systems.aspx

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