The ProLine Standard electric water heater is the reliable choice when you are looking to maximize your hot water output and is designed with environmentally-friendly insulation to reduce standby heat loss. With a 40 gal (nominal) tank delivering 4500 W, the ENT-40 delivers a first hour rating of 53 gal at an Uniform Energy Factor of 0.92. The Coregard sacrificial anode helps protect the tank from the corrosive effects of water and is accompanied by a 6-year limited tank warranty.
Enhanced heating elements|Incoloy stainless steel lower element lasts longer than a standard copper element|Dynaclean diffuser dip tube|Helps reduce lime and sediment buildup and maximizes hot water output|Made from long-lasting PEX cross-linked polymer (diffuser design is not used on lowboy models)|High energy factors|Eco-friendly non-CFC foam insulation, heat traps and other features combine to yield a higher Energy Factor that maximizes savings on operating costs|Coregard anode rod|Our anode rods have a stainless steel core that extends the life of the anode rod allowing superior tank protection far longer than standard anode rods|Blue Diamond glass coating|Provides superior corrosion resistance compared to industry standard glass lining|Enhanced-flow brass drain valve|Our residential water heaters have a solid brass, tamper resistant, enhanced-flow, ball type, drain valve|Uses a standard female hose fitting that allows for fast and easy draining during maintenance|Designed for easy operation, this valve includes an integral screwdriver slot that features a 1/4 turn (open/close) radius, which not only permits full straight-through water flow but also a quick and positive shut off|60 Hz|Low lead content
AO Smith ProLine Electric Water Heater, Series: ENT-40, 40 gal Tank, 240 VAC, 9000 W Power, 1 ph ph, 3/4 in MNPT Water Connection, (2) Copper/Incoloy Heating Element, 0.92, 21 gph at 90 deg F Rise Recovery Rate, 150 psi Pressure, Tall Tall or Short, ASME: No, 18 in Dia x 61-1/4 in H Dimensions