Marey's 120V Mini Tank is perfect for point of use applications such as mobile sinks, basement wet bar, kitchen stations, RV's, boats, medical ofices or as a sandwich solution for points of use that exceed the recommended distance from the original hot water solution. These small tanks are compact and provide you hot water immediately on demand. The mini tank is UL listed for safety and is designed with knob controls for temperature settings. Has 3 different applications: point of use for a single sink, as a supplement to an existing heater located far from the sink, and as a buffer installed in-line with tankless water heaters. Not recommend for elevations above 2000 ft.