This geothermal unit is designed to give you and your family dependable comfort 12 months of the year. And here's something else you can feel good about - it'll provide this comfort in an environmentally friendly way, using geothermal technology to efficiently heat and cool your home. The feature-packed geothermal unit has another benefit that you'll be interested in-its optional built-in desuperheater can provide a significant amount of your domestic hot water supply. By using heat rejected from the unit to preheat your home's water, you'll have hot water provided virtually "free" during cooling and very efficiently during heating. The desuperheater also reduces the amount of time the hot water heater runs.