1. All in one design,install and maintain conveniently. 2. water and electricity system is completely separated, assure using safely 3.the water temperature is set freely within 30-55 4.with magnesium nod inside. 5.Intelligent control 6.Compact design with 200L/250L/300L available for option 7. Stainless steel tank inside, plus 50mm insulation 8. Refrigerant R407c and R410a are available for option 9.Automatic defrosting function included. 10.Electrical heating element inside as back up for emergent request 11 Stainless steel or other colors cabinet for option 12.50HZ and 60HZ are both available 13. The tank is available to have pipe coil inside for the external heating source, such as heat pump, boiler or solar system. Heating Capacity 2.6KW COP 3.4 Certificates CE,CCC, ISO9001. Carton box or plywood