Hott Wash Portable Hot Water Unit lets you hot water anytime & anyplace even in remote locations. Unit Operates off Standard Electric 110v Outlet - Portable Generator - 12 Volt truck Inverter. Safe, Easy to use, For Everyday Year Round Use. Temp setting 65 to 145. This is a Quick recovery hot water unit, not an instant hot water unit. It Heat the water 4 times faster then our home hot water unit.