Sensors

Burner Type NOx (5) Steel (2) Draft Hood Outlet/Vent Size 3 Inch or 4 Inch (7) 4 Inch (1) Energy Saver Conformance Yes (1) Gas Connection 1/2 Inch (8) Gas Type Natural (8) GPH Recovery 21 GPH at 90 Deg F (9) 34 GPH at 90 Deg F (1) 41 GPH at 90 Deg F (1) 43 GPH at 90 Deg F (4) 7 GPH at 90 Deg F (2) 70 GPH at 90 Deg F (1) 81 GPH at 90 Deg F (1) Ignition Type Piezo (1) Pilot Spark (7) Inlet/Outlet Connection 3/4 Inch Threaded (19) Number of Anode Rods 1 (1) Number of Elements 1 (2) 2 (9) Options Temperature and Pressure Relief Valve (6) Power Rating of Elements 1500 Watt (2) 3500/4500 Watt (1) 4500 Watt (8) Relief Valve Details Temperature and Pressure Relief Valve Installed Tank Capacity 19 Gallon (2) 28 Gallon (1) 30 Gallon (2) 38 Gallon (1) 40 Gallon (6) 48 Gallon (1) 50 Gallon (4) 6 Gallon (1) 72 Gallon (1) Tank Dimensions 14 Inch Diameter x 16-3/16 Inch Height (1) 16 Inch Diameter x 56-1/4 Inch Height (1) 18 Inch Diameter x 24-7/16 Inch Height (2) 18 Inch Diameter x 56-9/16 Inch Height (1) 20 Inch Diameter x 48 Inch Height (1) 20 Inch Diameter x 48-15/16 Inch Height (1) 20 Inch Diameter x 49-7/16 Inch Height (1) 20 Inch Diameter x 56-9/16 Inch Height (1) 20 Inch Diameter x 62-7/16 Inch Height (1) 22 Inch Diameter x 31-13/16 Inch Height (1) 22 Inch Diameter x 47-11/16 Inch Height (1) 22 Inch Diameter x 47-3/16 Inch Height (1) 22 Inch Diameter x 49-7/16 Inch Height (1) 22 Inch Diameter x 56-3/4 Inch Height (1) 22 Inch Diameter x 56-9/16 Inch Height (1) 24 Inch Diameter x 34-5/8 Inch Height (1) 24 Inch Diameter x 49-7/16 Inch Height (1) 26 Inch Diameter x 59 Inch Height (1) Tank Height Including Draft Hood 54-1/2 Inch (1) 57-7/8 Inch (1) 62-1/4 Inch (1) 63 Inch (1) 63-1/2 Inch (1) 63-3/8 Inch (2) 66-1/2 Inch (1) Tank Material Engineered Enameled Vitraglas (Lining), Steel (Surface) (18) Engineered Enameled Vitraglas Lining, Steel Surface (1) Tank Warranty 10 Year Limited (1) 6 or 10 Year Limited (6) 6 Year Limited (12) Thermostat Type Fully Automatic, Fast Acting, Surface Mount (11) Type Damper (1) Non-Simultaneous, Lowboy (3) Non-Simultaneous, Upright (5) Non-Simultaneous, Upright, Short (1) Short (2) Tall (4) Utility (2) Venting Type Atmospheric (7) Power, Horizontal/Vertical (1)