- Delivers 74-gallon first hour rating
- 40,000 BTU input power direct vent design delivers up to 0.68 Uniform Energy Factor
- Patented eco-friendly Green Choice® Gas Burner design reduces NOx emissions by up to 33% and complies with Low-NOx emission requirements
- Automatic pilot relight system shuts reduces gas consumption and eliminates nuisance pilot outages
- 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
- 6-year limited tank and parts warranty
The ProLine® XE 40-Gallon Power Direct Vent Natural Gas Water Heater features a two-pipe combustion system that draws clean air from outside the home, eliminating any worries about indoor ventilation. Featuring a 40-gallon (nominal) tank and a 40,000 BTU gas burner, the GPDL-40 Power Direct Vent delivers a first hour rating of 74 gallons and a recovery rate of 45 gallons per hour. This model features a 0.68 Uniform Energy Factor and carries a 6-year limited warranty. Environmentally-friendly insulation and factory-installed heat trap nipples reduce heat loss for maximum energy savings. This ProLine® water heater is designed with A. O. Smith's superior commercial-grade tank protection. Advanced tank features include stainless steel CoreGard™ anode rod, Blue Diamond® glass lining and DynaClean™ 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® water heaters are residential products built to commercial-grade standards and are only available for purchase through professional wholesalers and contractors.