AO Smith ProLine GCR-40 model is a 40-gallon, natural gas (NG) atmoshperic vent residential water heater with 6-year warranty.
- Blue Diamond glass coating prevents early corrosion of the tank, extending it's life
- Dynaclean diffuser dip tube reduces sediment build-up and improves long-term efficiency
- Coregard anode rod with stainless steel core
- Heat trap nipple reduces stand-by energy loss
- Push-button piezo ignitor.
- Fuel: Natural Gas (NG)
- Nominal Capacity (Gallons): 40
- Rated Storage Volume (Gallons): 38
- Input (BTU): 40,000
- Uniform Energy Factor: 0.66
- 1st Hour Rating (Gallons): 80
- Recovery @ 90°F Rise (GPH): 42
- Anode: CoreGard Sacrificial
- NOx Emissions: less than 40ng/J
- Water Connections: 3/4" NPT
- Water Connections Location: Top
- Gas Connection: 1/2" NPT
- Max Working Pressure: 150 PSI
- Ignition Type: Piezo push button ignitor
- Vent Type: Atmospheric (Standard)
- Venting Size: 3" or 4"
- Vent Material: B-Vent
- Elevation: 10,100 ft
- Dimensions (Diameter x Height): 20" x 58-1/4" (61-3/4" w/ Draft Hood installed)
- Weight (lbs): 138.
6-Year Limited Tank Warranty / 6-Year Limited Parts Warranty