I recently helped install a closed-loop geothermal heat pump system for my daughter, her husband and their 1-year old son, Henry. It was part of a new-home construction project, and one that convinced me it “hurts more” to help build a house at age 63 compared to when I built our home at 24.
A 4-ton-rated water-to-water heat pump will supply the home with space heating using low-temperature radiant floors and panel radiators. It also will supply the majority of the domestic hot water. In summer, the heat pump will supply chilled water to a central air handler for cooling and dehumidification.