- Geothermal heating and cooling systems. This technology taps into the earth's natural temperature-stored energy that can regulate the heating and cooling of your home or office. These systems are more efficient than ordinary heating and air conditioning systems, delivering five units of energy for every one unit of electrical energy used. Many owners realize savings up to 70 percent for heating, cooling and hot water. A typical 1,500-square-foot house in this area with a geothermal system cuts annual heating and cooling bills almost in half, from $1,100 or so down to about $560 per year, versus a standard efficiency heat pump. According to Frank Miranda, "You are not burning coal, or wood, or gas or oil. I put one in at my house. In the 15 years since I've had it, it's paid me back again and again."
- Tankless water heaters. Instead of heating water, only to have it lose some of that heat as it sits in the tank, these heaters instantly heat hot water as it's needed.
- Energy Star appliances.
- Efficient windows and doors.
- Blown-in fiberglass insulation.
- 40- to 50-year shingles. You don't have to replace them as often, and they cause less landfill waste.
- Solar shingles. These shingles include photovoltaic panels to capture solar energy but resemble ordinary asphalt shingles.
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