A.O. Smith has led the way in innovative hot water solutions for nearly 80 years. The Dura-Power is a 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. 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.