Heating Gas-fired Boilers (2)

AFUE Rating 84 Percent (1) 94.4 Percent (1) AGA Input Rating 180 MBH (1) 400 MBH (1) Air Inlet Connection 4 Inch (1) ASME Code Yes (1) Boiler Dimensions 23-1/2 Inch Width x 21-1/2 Inch Depth x 29-1/2 Inch Height (1) 25 Inch Width x 21-3/4 Inch Depth x 35-1/2 Inch Height (1) Boiler Material Copper Finned Tube (Heat Exchanger) (1) Stainless Steel (1) Burner Type Low Nox (1) Stainless Steel (1) DOE Heating Capacity 377 MBH (1) Gas Connection 3/4 Inch Gas Type Natural (2) GPH Recovery 22 GPM at 35 Deg F (1) Ignition Type 2-Stage, Intermittent Spark (1) Direct Spark (1) Net IBR Rating 328 MBH (1) Options Adjustable High Limit with Manual Reset, Flow Switch, Low Water Cut-Off, Stack Frame, Pump Delay with Freeze Protection, MP2 Sequencer, PVC/CPVC Venting Kit, O2 Barrier Waterway (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) ASME Pressure Relief Valve (1) Return Connection 1-1/2 Inch (2) Supply Connection 1-1/2 Inch (2) Type Condensing, High Efficiency, Modulating, Hot Water (1) Hot Water (1) Vent Size 4 Inch (1) 7 Inch (1) Venting Type Automatic (1) Direct, Horizontal, Vertical (1) Warranty 12 Year Limited, 2 Year Limited (Parts) (1) 20 Year Limited (1) Water Content 6.5 Gallon (1)