Tankless Water Heater Electric 18kW 208~240 Volt, thermomate On Demand Instant Endless Hot Water Heater, Digital Temperature Display Easy Installation, for Residential Whole House Shower, 76A GRAY[Instant Unlimited Hot Water] On demand tankless electric water heater, providing hot water in 3 seconds when you need it and as long as you need, eliminating wait time, never run out of hot water again and No More cold shower. Requires 80Amp breaker (2 Sets of Double-pole 40AMP Breakers)[Save Money and Space] Self-modulating technology regulating the amount of energy required to heat water only when you need it with 99.8% efficient, saving up to 60% on water heating cost comparing to traditional tank water heater. Wall mounted compact size with no water tank, convenient for any spaces, saving floor space and fitting into tight spaces.[Smart Operation] Auto adjusting energy consumption basing on income water temperature and flow, ensuring maximum efficiency, continuous stable temperature and optimal power usage. Digital temperature display allowing adjustment in 1 increment from 80F to 140F. Heating element separated from water tube significantly reducing scale, corrosion and mineral buildup on the element, achieving better performance and low maintenance.[Easy Installation & Safety Protection] ETL certified with overheating protection, auto stop heating when detecting no water, quality workmanship for leakage protectionNOTE Make sure this water heater is the correct size for your hot water need: 18kW 208 ~ 240V (adjustable) draw max 76amp; Required breaker 2 x Double-POLE 40AMP; Wire gauge 2 x 8AWG; Unit size 17.12 x 13.12 x 3.12; Water connection 3/4 NPT.Wattage18000 wattsBulb Voltage240 volts_of_alternating_currentProduct informationTechnical DetailsBrandthermomateProduct Dimensions13.12W x 17.12HSpecial FeatureInstant hot water, Leaking free and maintenance free heating elementColorGrayWattage18000 wattsVoltage240 Volts (AC)Heat Output18 KilowattsEfficiency99.8%Maximum Pressure150 Pound per Square InchMounting TypeWallIs ElectricYesManufacturerthermomateUPC750139327591Manufacture Year2024Part NumberET180Item Weight21.5 poundsItem model numberET180Is Discontinued By ManufacturerNoSize240V/18kWFinishGalvanizationAmperage Capacity76 AmpsMaximum Power18000 WattsInstallation MethodWall-MountedItem Package Quantity1Temperature Range80-140 Degrees FahrenheitCertificationETLSpecial FeaturesInstant hot water, Leaking free and maintenance free heating elementUsageInside; ProfessionalIncluded ComponentsMount KitBatteries Included?NoBatteries Required?Yes