DUN249-400S 400000 STEAM COMMERCIAL KIT D249 SERIES

Commercial Gas Boiler; Type Modular, Steam; Supply Connection 4 Inch; Return Connection 4 Inch; Gas Type Natural; AGA Input Rating 400 MBH; DOE Heating Capacity 310 MBH; Net IBR Rating 233 MBH; AFUE Rating 77 Percent; Boiler Dimensions 25 Inch Width x 50-3/4 Inch Depth x 38 Inch Height; Boiler Height Including Draft Hood 47-1/2 Inch; Boiler Material Cast Iron; Water Content 25 Gallon; Ignition Type Electronic Spark; Venting Type Vertical; Vent Size 10 Inch; Relief Valve Details Field Installed; ASME Code Yes; Pressure Rating 15 PSIG; Mounting Type Floor; Warranty 10 Year Limited; Options CSD-1; Inclusions/Features Automatic Gas Control, Low Water Cut-Off, Pressuretrol, Water Level Gauge; Applicable Standard CSA (US), ASME H, AHRI; Boiler Area 971 Square Foot; Chimney Size 10 Inch Inner Diameter x 20 Foot Height; Application Apartment Building, School, Church, Office