Abstract: A blower assembly includes a first tubular duct in pneumatic communication with a second tubular duct arranged in a generally oblique orientation relative to one another. A thermostatic switch effects actuation of a plurality of blower fans mounted at an entrance opening at a lower distal end of the first tubular duct to direct heat through the first and second tubular ducts. V-shaped spring plates mounted within side walls of the first tubular duct receive the respective first and second legs of a base assembly mounting the logs to be heated. An optional moisturizing and deodorizing dispenser assembly is mounted to the second tubular duct structure for dispersion throughout a room environment.

Abstract: A gas fire space heater which can be an insert for an existing fireplace or a free standing unit is described. The device consists of a gas burner with radiants disposed within a housing. The products of combustion are collected in a first plenum, directed through a concertina heat exchanger into a second plenum, and from the second plenum up a flue. Air to be heated is collected by a blower and circulated countercurrently to the products of combustion through the heat exchanger, around the housing, and into the space to be heated. Air to be heated is supplied to the blower from an outside vent, and an inside vent. The outside vent is controlled by a one-way suction damper and the inside vent is controlled by a manual damper. The two vents form a T at the fan inlet and control of the manual damper then controls the amount outside and inside air supplied to the blower.