The U.S. Department of Energy says there's a magic number for optimal for home heating and energy savings in the winter.
Leaving the thermostat at 55 degrees Fahrenheit during a winter vacation is a good recommended temperature, says Michael ...
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The best thermostat setting for when you're away during the holidays—to prevent frozen pipes and high bills
Aim to set your thermostat to at least 55°F, or slightly higher for older homes or those with exterior plumbing. A smart thermostat can help you manage temps remotely and may offer freeze protection ...
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