... 4.5kW, 8kW, 13.5kW cooling: 3.5kW, 7.2kW, 12kW CE,CCC,ISO9001,ISO14001 Air source and water source heat pumpsDomestic or commercial ... large amount of hot water and heat pumps can meet the demands efficiently. Heat pump is a machine that would extract heat ... , one for heating and the other for cooling.Moreover, heat pump is an energy efficient machine to provide heating and cooling in many applications. ...