... UL Standard Mechanical Instant Mini Water Heater -- XFJ-KHXFJ-KH seriesUL standard ElectricTankless Water Heater CB,CE,RoSH,UL240V, 8kw,10kw ... ) Reduce water heatingcosts by as much as 50% 3) Compact design savesspace 4) Far less likely toleak or rupture 5 ... Unlimited supply of hot water, heater is installed at point of use* Easy installation, compact appearance. heater can be installed above or under ...