... water heater heat pump heating: 4.5kW, 8kW, 13.5kW cooling: 3.5kW, 7.2kW, 12kW CE,CCC,ISO9001,ISO14001 Air source and water ... more versatile in applications. For instance, an air-to-water heat pump installed for kitchen, where the environment is hot, can ... be regarded as instantaneous water heater and the hot water storage may be eliminated. 2. Water-to-WaterWater-to-Water heat pump can be employed to ...