10 Energy-Efficient Home Improvements

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Seal it up

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KEITH WEBBER JR.—ISTOCKPHOTO

Plugging up the leaks that allow cold air to slip into your house—and drive up your heating bills—is an important first step in creating an energy-efficient home. Such leaks are often found around doors and windows, but they also can be in your basement or attic.

Next: Insulate upstairs


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