● Commercial-grade platinum liner, no need for anode rod protection ● LCD display, easy to operate ● Ratings from 12KW to 192KW ● Electric energy thermal efficiency ≥99.9% ● Step cycle ●50mm thick fluorine-free polyurethane insulation ●316L flanged type INCOLOY heating element ● Zero emissions, no fossil fuels, no chimneys, no carbon monoxide ● The liner is guaranteed for six years, and the parts are guaranteed for one year