what does a desuperheater do
A desuperheater is a secondary heat exchanger that transfers heat from the earth in the winter, and from your home in the summer, into your domestic hot water tank.The desuperheater is part of the geothermal heat pump's domestic hot water generating system (HWG).Hot water generators only heat domestic water when your geothermal heat pump is heating or cooling your home.n the summer heating your domestic water is almost free. This is because the heat that is being removed from your home is transferred into your hot water tank. Since this heat from inside of your home was going to be rejected (thrown away) into the earth anyway, putting it into your hot water tank instead is free.