heat pump water heater 1.swimming pool heat pump 2.heat pump for heating\cooling \hot water 3.ground source heat pump Circulation Pattern Air Source Heat Pump Water Heaterwater source heat pumpground source heat pumpgeothermal heat pumpwater heatersheat pump Heat Pump1.High efficiency, Energy saving2.COP UP to 4.03.Simplified installation4.Refrigerant: R410A or R22 Features:1.High efficiency2. ...