New Yorker Cast Iron Boiler 82.2% AFUE 241k Input, 241K Gross Out, 149K Net Out, 690 lbs, 2" (x2 Supply, x1 Return) Heating Connections, 3/4" NPT Gas Connection, 7" Vent Size, Dims (WxDxH) 29" W x 30" D x 40-7/16"H