An ENERGY STAR® certified heat pump water heater can save the average household almost $300 per year on electric bills compared to a standard electric water heater. This makes the heat pump water heater two to three time more energy efficient than a conventional electric water heater.
Heat pumps move the heat by working like a refrigerator in reverse. A stand-alone heat pump water heater pulls heat from the surrounding air and empties it into an insulated tank to heat the water while refrigerators remove heat from inside an insulated box and empty it into the room. Since heat pump water heaters remove heat from the air, warm climates work more efficiently for these systems.
Heat pump water heater systems require they be installed in areas where the temperature ranges between 40 - 90 degrees year round and at least 1,000 cubic feet of air space around the system.
A new ENERGY STAR certified heat pump water heater will save over 25,000 kWh of electricity over its lifetime - enough energy to light the average home for over 12 years.