Original appliance trade vintage catalog for HEATILATOR INC. was located at 4725 Nerle Hay Road, Des Moines, IA. Advantage fireplace heat circulate design. Better technology makes it the fireplace with more firepower. America's fireplace specialists. This unique old 1982 four page architectural specifications brochure would make a marvelous addition to your engineering collection. Pages are loose and contain a small amount of residual glue on edge.