Check the listing for details. Heatworks Electric Tankless Smart Water Heater, 6.2-24 kW (30-100 A, 208-240 V). Condition: New. Listed at 499.95 USD. INTRODUCING THE MODEL 3 TANKLESS ELECTRIC WATER HEATER BY HEATWORKSTHE WORLD'S ONLY WATER HEATER POWERED BY OHMIC ARRAY TECHNOLOGY INSTEAD OF METAL HEATING ELEMENTS.Powered by our patented Ohmic Array Technology, the MODEL 3 is a smart, electric tankless water heater that provides endless hot water on-demand for houses, apartments, and points-of-use. What sets it apart from other water heaters is how it heats water.You won't find metal elements inside. That 150-year-old technology has one fundamental flaw: the metal heating elements get very hot and the minerals found in water stick to them. This causes energy efficiency loss, hot spots, and eventually the elements will fail. Instead, the MODEL 3 uses electronic controls to pass controlled electric currents through the water. This transfer converts electrical energy into thermal energy, creating endless water, on-demand. At the temperature you want. And because no scale forms, there is never a loss of energy efficiency. No metal heating elements to replace. No maintenance.And as with all tankless electric units, the MODEL 3 only uses power when hot water is needed. Save time, money, and energy.SMALL IN SIZE. BIG IN INSTALLATION OPTIONS.The MODEL 3 installs like any other tankless electric water heater and can be used in new construction or as a replacement to any gas or electric tank or tankless water heater. Add it to an existing hot water system as a booster or install the MODEL 3 closer to the point of use for up to 10% in water and 25-40% in energy savings each month.CUSTOMIZABLE BASED ON YOUR HOME AND HOT WATER NEEDS.Another unique feature of the MODEL 3 is the ability to adjust it from 208-240 volts and 30 to 100 amps (6.2 to 24 kW) upon installation. The higher the amperage/power setting, the more hot water the unit can provide. Please make sure to reference both the expected temperature rise table and installation manual to make sure you have enough power required for your hot water needs before ordering. Maintains its high energy efficiency for life of unitEndless hot waterPrecise temperature controlZero maintenance requiredWi-Fi enabled, comes with mobile app to control and monitor water and energy usageWorks in new construction or as a replacement to any gas or electric tank or tankless water heater