New Yorker Cast Iron Boiler 82% AFUE 103k Input, 84K Gross Out, 63K Net Out, 420 lbs, 2" (x2 Supply, x1 Return) Heating Connections, 1/2" NPT Gas Connection, 5" Vent Size, Dims (WxDxH) 16" W x 28" D x 40-7/16"H