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  • Geothermal Heat Pump Systems by TerraSource Geothermal - Duration: 3 minutes, 13 seconds.

    • 5 years ago
    • 366,105 views
    According to the EPA, TERRASource geothermal systems can save 40 percent to 70 percent on home-heating and 30 percent to 50 percent on home-cooling costs over conventional systems.
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