High grade mild steel single welded storage tank High grade heating element – Incoloy 800 High grade glass line coating inside the tank and element 2 mm water tank & thickness of 0.5 mm glass line enamel coating. High grade superior PUF insulation for better heat retention High grade thermostat ( UL Mark) and thermal cut out – CE Mark Heavy duty Magnesium anode Multi function valve Earth leaking protection device High grade internal wiring 5 Star rated as per BEE