Choosing the right window air conditioning unit for your room will help keep you cool and save energy when the weather heats up. Here are three important factors to consider when buying a new AC:
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Water heating can account for 12 percent of a home's energy use. When replacing your water heater, look for models that have earned the ENERGY STAR. A certified heat pump water heater can save a household of 4 about $330 annually on electric bills.
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