Black+Decker Tankless Water Heaters save you both energy and money by providing ENDLESS hot water ONLY when you need it. Yes, that's right... ENDLESS hot water on demand! With both innovation and high efficiency in mind, the advanced, digital, self-modulation technology is designed to regulate the energy used to heat water to desired temperature settings. You will instantly save up to 50% on your water heating costs simply by eliminating stand by heat loss and cycling loss. Our water heaters are made of the highest graded materials, utilizing a complete stainless steel internal assembly, which is non-corrosive, rust-resistant, and Leads free. Factors that will grant you years of dependable performance and almost double the life expectancy of a conventional Water heater. In addition, the sleek, compact wall-mounting design will have you regain and enjoy that valuable space in no time.