Over a million Americans have now installed geothermal heat pumps in their homes.  Every year, more than 60,000 new residences get them. Geothermal exploits the unvarying latent heat of the earth just a few feet below ground level to warm your home in winter and act as a heat sink to disperse heat extracted from…

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When you’re preparing to go away on vacation, it’s easy to forget that many energy-guzzling appliances continue to use energy, even when they’re switched “off” and no one’s at home. Certain devices may even run more than usual because of the temperature change in the house or lack of maintenance while you’re away. That just…

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