New Yorker Cast Iron Boiler 85% AFUE 63k Input, 54k Gross Out, 47k Net Out, 250 lbs, 1-1/4" NPT Heating Connections, 1/2" NPT Gas Connection, 3" Vent Size, Dims (WxDxH) 12-3/4" W x 26-1/2" D x 37-3/4"H