... 1. Full auto-control water function.2. Constant temperature, timing electric heater(Power 1.5-4.5KW)3. Setting temperature(30centigrade ... function (supply water level to 50% firstly ,then auto-startup electric heater whenwater level below 50%) STANDARD SPECIFICATION:1.Type of ... hoursheat preservation5. Tank include :1.5/2.0/2.5KW Electric Heating Element , Mg Anode , T&PValve, Sensor,non-return valve ...