Rheem 18kW 240V Tankless Electric Water Heater, GrayThis tankless electric water heater is ideal for mid-range whole-home applications. This unit is ideal for single shower applications in the Midwest. The Rheem Performance tankless electric water heaters offer a continuous, endless supply of hot water. A lower kilowatt unit can provide hot water on demand for single or multiple point-of-use applications while a higher kilowatt unit could provide hot water for a whole house depending on the inlet ground water temperature. Tankless electric water heaters save space, save energy, save money, and require no venting. The sleek, compact size, 90 percent smaller than a tank, allows you to save space and place the unit wherever you want, including under a sink. Tankless units only draw energy when hot water is flowing, while traditional tanks are constantly drawing energy to keep the water in the tank at the desired temperature. Rheems self-modulating technology can save Up to 50 percent on your water heating bill.External digital thermostatic control with LED display (+/1 degree accuracy)Most advanced self-modulation, adjust power to meet hot water demandDurable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPMSimple installation bottom 3/4 inch NPT water connectionsThreaded for easy replacement, simple installation, digital temperature displayProduct informationTechnical DetailsBrandRheemProduct Dimensions14.5W x 18.25HSpecial FeatureLED DisplayColorGrayWattage18000 wattsVoltage240 VoltsMaximum Flow Rate4.4 Gallons Per MinuteHeat Output18 KilowattsEfficiency99.8%StyleHeaterMaximum Operating Pressure150Mounting TypeWallIs ElectricYesManufacturerRheemItem Depth18.25 inchesUPC020352685335Global Trade Identification Number00020352685335Part NumberRTEX-18Item Weight14.78 poundsCountry of OriginChinaItem model numberRTEX-18Is Discontinued By ManufacturerNoSizeSmallFinishStainless SteelShapeRectangleInstallation MethodWall MountItem Package Quantity1Water Consumption7 GallonsSpecial FeaturesLED DisplayUsageInside; ProfessionalIncluded ComponentsFittings, AeratorsBatteries Included?NoBatteries Required?No