A. O. Smith ProLine(R) 40-Gallon Ultra-Low Nox Atmospheric Vent Tall Natural Gas Water Heater

 •Delivers 83-gallon first hour rating
 •40,000 BTU input atmospheric vent design delivers up to 0.64 Uniform Energy Factor
 •Ultra-Low NOX Green Choice(R) Gas Burner, meets or exceeds emission requirements in California & Utah
 •Push-button piezo ignitor makes lighting pilot fast & easy
 •Intelligent electronic gas control provides precise temperature control and LED status indicator
 •Patented Blue Diamond(R) glass tank lining protects against corrosion
 •DynaClean(TM) automatic cleaning system protects against sediment build-up
 •Stainless steel CoreGard(TM) anode rod protects against corrosion longer than ordinary anodes
 •Commercial-grade brass drain valve for durable and easy operation
 •10-year limited tank and parts warranty

The ProLine(R) 40-Gallon Ultra-Low Nox Atmospheric Vent Tall Natural Gas Water Heater delivers an efficient, reliable performance and features an innovative design that protects against accidental ignition of flammable vapors. Featuring a 40-gallon (nominal) tank and a 40,000 BTU gas burner, the XUC-40 Standard Vent delivers a first hour rating of 72 gallons and a recovery rate of 41 gallons per hour. It carries a 10-year limited tank warranty, and meets Ultra-Low NOx emission requirements. Environmentally-friendly insulation and factory-installed heat trap nipples reduce heat loss for maximum energy savings. This ProLine(R) water heater is designed with A. O. Smith's superior commercial-grade tank protection. Advanced tank features include stainless steel CoreGard(TM) anode rod, Blue Diamond(R) glass lining and DynaClean(TM) automatic sediment-cleaning system, all designed to help protect the tank from the corrosive effects of water and extend the life of the water heater. A. O. Smith s ProLine(R) water heaters are residential products built to commercial-grade standards and are only available for purchase through professional wholesalers and contractors.