... .2. Constant temperature, timing electric heater(Power 1.5-4.5KW)3. Setting temperature(30centigrade-90 centigrade),setting water level(50 ... %-100%)4. Manual water, supply water of control temperature, auto-water ... ,72 hoursheat preservation5. Tank include :1.5/2.0/2.5KW Electric Heating Element , Mg Anode , T&PValve, Sensor,non ...