The ProLine XE High Efficiency Flue Damper gas water heater offers highly optimized performance and increased efficiency thanks its automatic flue damper and electronic gas control.
Automatic flue damper - Increases efficiency as it automatically opens and closes to reduce heat loss in the standby mode|Electronic gas control - Intelligent control logic provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response to optimize performance|Diagnostics - The electronic gas control incorporates an LED status indicator that monitors system operation and service diagnostics|Electronic ignition - Heater operates with an automatic pilot relight system that shuts off the pilot during stand-by modes to reduce gas consumption and eliminates nuisance pilot outage issues associated with standing pilot models|Dynaclean diffuser dip tube - Reduces lime and sediment build up and maximizes hot water output, made from long-lasting PEX cross-linked polymer|Green Choice gas burner - Patented "Eco-Friendly" design reduces NOx emissions by up to 33% and complies with low- NOx emission requirements of less than 40 ng/J|Coregard anode rod - Our anode rods have a stainless steel core that extends the life of the anode rod allowing superior tank protection for longer than standard anode rods|Enhanced-flow brass drain valve - Our residential water heaters have a solid brass, tamper resistant, enhanced-flow, ball type, drain valve|Uses a standard female hose fitting that allows for fast and easy draining during maintenance|Designed for easy operation, this valve includes an integral screwdriver slot that features a 1/4 turn (open/close) radius, which not only permits full straight-through water flow but also a quick and positive shut off|Blue Diamond glass coating - Provides superior corrosion resistance compared to industry standard glass lining|All models are certified from sea level to 10100 ft elevation
AO Smith ProLine XE Gas Water Heater, Series: GCF-40, 40000 Btu/hr Heating, Natural Gas, 1/2 in Gas Connection, 40 gal Tank, Electronic Ignition, Atmospheric Vent, 3 in, 4 in Vent, 42 gph at 90 deg F Recovery, Energy Factor: 0.67, 3/4 in Water Connection, 150 psi, Tall or Short: Tall, Ultra Low Nox: No, 20 in Dia x 64-1/4 in H