Heating Gas-fired Boilers (2)

AFUE Rating 94 Percent (1) 94.4 Percent (1) AGA Input Rating 400 MBH (1) 80 to 399 MBH (1) Air Inlet Connection 4 Inch ASME Code Yes (1) Boiler Dimensions 15-1/2 Inch Width x 27-3/4 Inch Depth x 42-1/2 Inch Height (1) 25 Inch Width x 21-3/4 Inch Depth x 35-1/2 Inch Height (1) Boiler Material Stainless Steel (1) Stainless Steel (Heat Exchanger) (1) Burner Type Low Nox (1) Modulating, Low NOx, Metal Fiber and Stainless Steel (1) DOE Heating Capacity 377 MBH (1) Gas Connection 1 Inch (1) 3/4 Inch (1) Gas Type Natural (2) GPH Recovery 21 GPM at 35 Deg F (1) 22 GPM at 35 Deg F (1) Ignition Type Direct Spark (2) Net IBR Rating 324 MBH (1) 328 MBH (1) 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) CON-X-US Remote Connectivity, Modbus Communication, Flow Switch, Low Water Cut-Off, Alarm Bell, Concentric Vent Kit, SMART SYSTEM PC Software, BMS Gateway to LON or BACnet, Multi-Temperature Loop Control, Sidewall Vent Termination, Floor Stand (1) Pressure Rating 160 PSI (1) Relief Valve Details 30 PSI ASME (1) 50 PSI ASME Relief Valve (1) Return Connection 1-1/2 Inch (2) Supply Connection 1-1/2 Inch Type Condensing, High Efficiency, Modulating, Hot Water (1) Hot Water (1) Vent Size 4 Inch (2) Venting Type Direct (1) Direct, Horizontal, Vertical (1) Warranty 10 Year Limited (1) 12 Year Limited, 2 Year Limited (Parts) (1) Water Content 3.4 Gallon (1) 6.5 Gallon (1)