Is a geothermal heat pump right for you?

I’ve tried it all: caulking cracks, blowing in insulation, replacing drafty windows and–I’m especially proud of this one–installing a mail-slot cover so airtight it could be used in a space shuttle docking module . Yet my home heating bill remains an object of fear and loathing. After years of trying low-tech solutions, I’m drawn to a high-tech solution, and the one I keep hearing about is the geothermal heat pump.

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Is a geothermal heat pump right for you?