Carrier/Bryant Cast Iron Boiler 84% AFUE 92.5k Input, 78k Gross Out, 68k Net Out, 250 lbs, 1-1/4" NPT Heating Connections, 1/2" NPT Gas Connection, 5" Vent Size, Dims (WxDxH) 13-3/8" W x 20" D x 32-1/8"H