I bought a new house just before winter last year with a geothermal heat pump, which was a major factor in my purchase decision. However, my winter bills were through the roof as the heat pump would switch to auxiliary heat when it got below 50 degrees outside. My electric company provides comparisons with similar homes in my area, and my home uses about twice the electricity of comparable 'average houses', and several times more than comparable 'efficient houses' in my area both summer and winter. My house is less than 10 years old and is well insulated. I've had service-people who maintain geothermal come out several times, and they assure me that everything is working properly. In the winter I keep the thermostat in the upper 60s, and in the summer it's set to 75. Is this typical of geothermal systems? I'm considering ripping it out and paying for a gas-line and gas heat, but that will cost me a lot of money. Anyone have any suggestions?