The ProLine® Standard Electric water heater is the reliable choice when you want to maximize hot water output and energy savings. The ENS-40 incorporates a 40-gallon (nominal) tank and 4,500 watts to deliver a first hour rating of 55 gallons at a Uniform Energy Factor of 0.92. Environmentally-friendly insulation and factory-installed heat trap nipples reduce heat loss for maximum energy savings. This ProLine® water heater features A. O. Smith’s advanced tank protection, including a stainless steel CoreGard™ anode rod, Blue Diamond® glass lining, and DynaClean™ automatic sediment-cleaning — designed to help protect the tank from the corrosive effects of water and extend the life of the water heater. The ENS-40 includes a 6-year limited tank warranty. A. O. Smith’s ProLine® water heaters are residential products built to commercial-grade standards.
- Delivers 55-gallon first hour rating
- Dual 4,500-watt commercial-grade heating elements deliver reliable and efficient hot water
- Long-lasting lower Incoloy™ stainless steel element
- HUD compliant, approved for mobile homes/manufactured housing
- Patented Blue Diamond® glass tank lining protects against corrosion
- DynaClean™ automatic cleaning system protects against sediment build-up
- Stainless steel CoreGard™ anode rod protects against corrosion longer than ordinary anodes
- Commercial-grade brass drain valve for durable and easy operation
- CSA Certified and ASME Rated T&P Relief Valve, Factory-Installed
- 6-year limited tank and parts warranty
- Model #ENS-40
