The Sanden Eco® Plus Hot Water Heat Pump System works in a different way compared to a conventional electric hot water system. The Sanden Eco® Plus Hot Water Heat Pump System operates like a refrigerator in reverse. It contains a fan that forces air through an evaporator that contains a refrigerant. The heat in the air passes through the evaporator and is absorbed by a natural refrigerant, R744 (CO2), which is ozone friendly and does not contribute to global warming.
Edit