I recall seeing a plan for a smoke hood that was built with a "cantilevered ""bent" "out of square""a 30 or so degree walk"" not straight up" top to meet a chimney at the center of the forge table (the forge cannot be moved to fit under the chimney because of space issues and the chimney is above center of the forge table) .does anyone know of this site or book?? Paddy p the wannabe