1.Mechanical Control 
2.With Thermostat Knob and Temp Index          
3.Vertical wall-mounting with outlet and inlet by the bottom
4.Enamel Tank
5.Non-fluorine Polyurethane Foaming Insulation Layer
6.Protection against Dry heating / Over-temperature/ Electricity leakage                                 
7.With Encloy Element , "Kawai" brand                      
8.With Magnesium anode(AZ31) and Safety Valve