8 Energy-Efficient Home Improvements That Save Money

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Insulation.

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Insulation keeps your house warm in the winter, cool in the summer and reduces heating and cooling costs by as much as 20 percent, according to Green Energy Solutions, Inc., a company that specializes in retrofitting buildings to make them more energy-efficient. You can pick up a roll of insulation for about $15 at home improvement stores.

Next: Compact fluorescent light bulbs.


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