Original heating trade vintage catalog for L. J. MUELLER FURNACE COMPANY. Main office and factory was located at 2007 West Oklahoma Avenue, Milwaukee, WI. Manufacturers of Heating and Air Conditioning Equipment. Climatrol AC Furnace, Series E Gas Era Steel Furnace, Boilers and Unit Heaters. Disbound from a large 1938 industrial builders heating catalog, this unique old six page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro heating equipment library.