A.O. Smith has led the way in innovative hot water solutions for nearly 80 years. The Dura-Power is an electric commercial water heater used as a recovery heater. The DEL models are known as the lowboy models allowing them to fit just about anywhere. They have the inlets and outlets located on the top of the unit. A.O. Smith stands behind their products and the Dura-Power comes with a limited lifetime warranty to give you peace of mind with your purchase. Long-Lasting Elements The Dura-Power water heater has zinc plated copper sheaths for longer life. They have a lower surface temperature to minimize scale build-up but have a larger surface to heat the water. Built to Last Every Dura-Power water heater comes with an anode rod to prevent corrosion. The cabinet also has a bonderized undercoat with a baked enamel finish for a sturdy unit. Glass-Lined Tank The tank has been coated using an industry exclusive Ultra Coat™ glassing process where the coating is applied as a liquid and then mechanically rotated to ensure an even coat that provides protection against corrosion.