Description Specifications Heating surface: 5 square ft. per boiler hp Design: high efficiency 3-pass dryback Capacity: 250 boiler hp Pressure: 150 psi steam Max. output: 8,625 lb per hour Gas input (cfh): 10,500 max Electrical: all voltages, 3-phase Length: 260 inches Width: 90 inches Height: 98 inches Burner models: Webster JB series Burner listing: UL and CSD-1 Modulation: full modulation Flame control: Honeywell RM7800 Casing: polished stainless Primary lwco: MM 157-SRL Aux lwco: MM RS-1-BR-1 Lwco relay: Warrick 26MB1A0E Connection Sizes Steam: 6” 300# flange Stack: 18” flange Blowdown/drain: 1.5” NPT Feedwater: 1.5” NPT Surface blow: 1.5” NPT
