Gas-fired Boilers

AFUE Rating 94 Percent AGA Input Rating 80 to 399 MBH (1) Air Inlet Connection 4 Inch (1) Angle 90 Degree (1) ASME Code Yes (1) Base to Inlet Dimension 3-1/16 Inch (1) 4 Inch (1) Boiler Dimensions 15-1/2 Inch Width x 27-3/4 Inch Depth x 42-1/2 Inch Height (1) Boiler Material Stainless Steel (Heat Exchanger) Burner Type Modulating, Low NOx, Metal Fiber and Stainless Steel (1) Connection Location Lower (1) Dial Diameter 2-1/2 Inch (1) Disc Material Stainless Steel (2) Display Type Dial (1) End Connection 1/4 Inch Threaded (1) Female Threaded x Male Threaded (1) Male Threaded (1) Male Threaded x Female Threaded (2) Male Threaded x ProPEX (1) PEX Crimp x PEX Crimp (2) ProPEX x ProPEX (5) Quick-Connect x Quick-Connect x Quick-Connect (1) Union CPVC x Union CPVC x Union CPVC (1) Union x Male Threaded (5) End to End Distance 4-3/4 Inch (1) 6-5/8 Inch (1) Flow Rate 0.5 GPM at 0.8 PSI to 20 GPM at 125 PSI (1) 0.5 to 20 GPM (1) Gas Connection 1 Inch (1) Gas Type Natural (1) GPH Recovery 21 GPM at 35 Deg F Header Pipe Size 1 Inch (1) 1-1/2 Inch (1) 1-1/2 Inch Inner Diameter (4) 3/4 Inch (1) 3/4 Inch x 3/4 Inch (3) Height 1.77 Inch (4) 12.6 Inch (5) 2 Inch (1) 5.8 Inch (1) Ignition Type Direct Spark (1) Inlet Connection Hub (1) Male Threaded (1) Male Threaded/Female Threaded (1) PEX (1) Inlet Size 1 Inch (1) 1-1/2 to 2 Inch (1) 1/8 Inch (1) 3/4 Inch, 1/2 Inch (1) Inlet to Mixing Outlet Dimension 3-1/16 Inch (1) 4 Inch (1) Length 14.4 Inch (1) 16.16 Inch (1) 18.1 Inch (1) 23.92 Inch (1) 27.8 Inch (1) 4.4 Inch (1) 5.7 Inch (1) 6.4 Inch (1) 7.55 Inch (1) 7.8 Inch (1) 9.3 Inch (1) Material ABS Plastic (Dial) (3) ASTM F877/F1960 Polyphenylsulfone (1) Brass (1) Brass (Tailpiece), Cast Brass (Union Nut), EPDM (Gasket) (1) C85700 Brass (2) CA360 Brass (1) Galvanized Carbon Steel (1) Polyamide (1) Polyamide 6 (1) Steel (1) UNS C37700 Brass (1) Material Specification ASTM B283/B283M/F877/F1960 (1) ASTM F877 (2) Maximum Pressure 15 PSI (1) Media Handled Air (1) Air, Water (2) Minimum Pressure 0 PSI (1) Net IBR Rating 324 MBH (1) Nominal Size 1/2 Inch x 1/2 Inch x 1/2 Inch (2) R20 (1) Number of Ports 10 (1) 12 (1) 2 (1) 3 (2) 4 (3) 5 (1) 6 (2) 7 (1) Number of Valves 1 (4) Options Alarm Bell, Condensate Neutralization Kit, Concentric Vent Kit, BMS Gateway to Lon or BACnet, High and Low Gas Pressure Switch with Manual Reset, ModBus Communication, Multi-Temperature Loop Control, Low Water Cutoff, Manual Reset and Test, Boiler Circulation Pump, Smart System PC Software, Stainless Steel Vent Kit (1) Overall Height 2.75 Inch (1) Overall Size 1.5 Inch Width x 1 Inch Height (1) 1.75 Inch Width x 2 Inch Depth x 2.5 Inch Height (1) 2.13 Inch Length x 2.04 Inch Height (1) Port Size 1 Inch Inlet x 1/2 Inch Outlet (1) 1-1/4 Inch (R32) Inlet, 3/4 Inch (R20) Outlet (4) 1/2 Inch (4) 3/4 Inch Inlet, 1/2 Inch Outlet (1) 3/4 Inch Inlet, 3/4 Inch Outlet, 1/2 Inch Outlet (Branch) (1) R32, R20 (1) Pressure Gauge Type Standard (1) Pressure Rating 125 PSI (3) 13 PSI (1) 145 PSI (5) 15 PSI (SWP), 60 PSI (CWP) (1) 150 PSI (3) 150 PSI at 210 Deg F (5) 160 PSI at 73 Deg F, 100 PSI at 180 Deg F, 80 PSI at 200 Deg F (2) 60 PSI CWP, 15 PSI SWP (1) 90 PSI (1) 160 PSI (1) Relief Valve Details 50 PSI ASME Relief Valve Return Connection 1-1/2 Inch (1) Set Temperature Range 105 Deg F (1) 80 to 120 Deg F (1) Size R32 x 3/4 Inch (1) Size A 1-1/4 Inch (1) 3/4 Inch (1) R32 (1) Size B 1-1/2 Inch (1) 1-1/4 Inch (1) 3/4 Inch (1) Spherical Piston Material Polypropylene (1) Supply Connection 1-1/2 Inch (1) Temperature Rating 200 Deg F (2) 212 Deg F (1) 220 Deg F (8) 250 Deg F (1) 320 Deg F (5) Top Shape Round (1) Top Size 0.875 Inch Diameter (1) Type 180 Degree, Straight (1) 2-Wire, Slow Opening (1) Adjustable (1) Automatic, Float (2) Head (1) Hex Head (1) Motor (1) Piston (1) Snap Action (2) Thermostatic (2) Turbo (1) Union, Straight (1) Wall Mount (1) Hot Water (1) Vent Size 4 Inch (1) Venting Type Direct (1) Warranty 10 Year Limited (1) Water Content 3.4 Gallon (1) Width 0.92 Inch (2) 3.46 Inch (5)