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    GE GeoSpring electric heat-pump water heater review

    Consumer Reports News: March 11, 2010 01:25 PM

    The new GE GeoSpring can save you money.

    You might have recently seen a TV ad showing a troop of snow monkeys bathing in a hot spring that's seemingly heated by the new GE GeoSpring electric heat-pump water heater. "Heating your water in your home any other way is going to seem primitive" the ad concludes as the monkeys soak blissfully in the steaming water.

    It's a neat commercial, but what could be most interesting to you is how much money the GeoSpring water heater might save you. GE says the unit could reduce electric-water-heater operating costs up to 62 percent and save the average U.S. household $320 a year.

    Based on our preliminary tests in a room with an ambient temperature of 65° to 70°F, the GeoSpring has produced energy savings of at least 50 percent compared with a standard GE 50-gallon electric water heater. That would result in annual savings of $280 or higher, based on the $560 cost of running a standard 50-gallon electric water heater and the 2009 national average electricity price of 11.4 cents per kilowatt hour. (This U.S. Department of Energy calculator can estimate your water-heating costs.)

    The GeoSpring works by reversing the workings of a refrigerator or air conditioner. An evaporator unit on top of the GeoSpring draws in ambient heat from the surrounding air. That heat is transferred to the water in the tank through condenser coils that spiral around the heater's tank. During periods of peak demand when the ambient air isn't warm enough, the heat pump can't keep up to heat the water sufficiently, so a pair of traditional electric heating elements kick in.

    The GeoSpring, $1,700 without installation (you might find it for less), installs just like a conventional water heater. At 61 inches tall, the GeoSpring is 4 to 15 inches taller than standard GE electric water heaters. The GeoSpring also requires a drain or pump to remove the water that condenses during operating.

    We ran the GeoSpring in hybrid mode only—using both the heat pump and the heating elements—as recommended by GE. Although the heat-pump mode is more efficient, it does increase recovery time. That means, during peak-demand periods when you've used lots of hot water, in heat-pump mode the GeoSpring will take longer to produce more hot water.

    The GeoSpring, with a high energy factor of 2.35 that exceeds the federal government's proposed tougher standards for water heaters, is among the hyrid heat pump models that qualify for a 30 percent federal tax credit, a cash for clunkers for appliances rebate in several states, and numerous government and utility incentives.

    As testing on this appliance continues, look for more posts on the GE GeoSpring electric heat-pump water heater.

    Dave Trezza and Gian Trotta

    Essential information: Our free buyer's guide to water heaters includes coverage of a number of different water-heater types, including storage-tank, tankless, and solar-powered models. Also check out our water-heater-sizing calculator and our active water-heater forums.

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