Black+Decker Electric Tankless Hot Water Heaters provides you with endless hot water only when you need it, without the wait or worry of ever running out. Unlike conventional tank water heaters, which constantly consume energy to keep your water hot 24/7, this state-of-the-art, digital technology will instantly reduce your energy consumption and save you money on energy costs simply by heating water on demand. The unit does NOT require any gas lines or venting, and the compact design allows you flexibility to install virtually anywhere - in a cabinet, closet, garage, basement, etc. You can be sure to earn some precious space by installing this unit. (IMPORTANT: inlet temps vary by location and seasonality. Selecting the right water heater depends on your incoming water temperature, flow rate, and desired output temperature. See Performance Guide or Manual before purchasing.)