Original heating trade vintage catalog for VULCAN SOOT BLOWER CORPORATION, was located in Du Bois, PA. Manufacturers of Soot Blowers for all types of Boilers, Air Heaters, Oil Stills and Superheaters. Increase the capacity of boiler, decrease draft loss. Disbound from a large 1936 industrial heating catalog, this unique old one page technical brochure would display wonderfully matted and framed. A marvelous addition to your retro heating equipment library.