Geothermal (ground-source) vs air-source heat pump ROI

There are many factors that make determining return on investment for something as complicated and unique as a home’s HVAC system difficult. I was looking forward to this video from Matt because I knew that he had opted for a Water Furnace ground-source (aka geothermal) heat pump setup. We’re opting for air-source for our passive house, probably a Mitsubishi Hyper-Heat […]

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