Abstract: This invention relates to a method and apparatus for the extraction of smoke from the exhaust gases of an internal combustion of fuel in a mechanical device. It also relates to the extraction of heat from such exhaust gases. The apparatus is positioned to accept the flow of the device's hot exhaust gases through its insulated chambers and is sized to allow sufficient time of exposure of said hot exhaust gases to the high temperatures held within said chambers. The high temperatures are augmented by a heating element and the introduction of additional outside air at a venturi tube located near the entrance of the apparatus. Thus the apparatus holds the exhaust gases long enough inside its sufficiently oxidized chambers under sufficiently high temperatures to burn all the smoke particles in said exhaust gases.

Abstract: This invention relates to a method and apparatus for the extraction of heat and smoke from a fuel burn in a firebox. The design is for the firebox exhaust area to be wrapped with its own hot exhaust gases, for smoke extraction, and then, for heat extraction, have all of the outer surface of a stove, fireplace or furnace exposed to said hot exhaust gases. Such a wrap-around design burns smoke form said exhaust gases, holds a high temperature in the firebox area, for good combustion, and increases the efficiency of heat extraction by using all of the outer surface of the stove, fireplace or furnace as a high temperature heat exchanger.

Abstract: This invention relates to a method and apparatus for the extraction of heat and smoke from a fuel burn in a firebox. The design is for the firebox exhaust area to be wrapped with its own hot exhaust gases, for smoke extraction, and then, for heat extraction, have all of the outer surface of a stove, fireplace or furnace exposed to said hot exhaust gases. Such a wrap-around design burns smoke from said exhaust gases, holds a high temperature in the firebox area, for good combustion, and increases the efficiency of heat extraction by using all of the outer surface of the stove, fireplace or furnace as a high temperature heat exchanger.

Abstract: This invention relates to a method and apparatus for the extraction of heat and smoke from a fuel burn in a firebox. The design is for the firebox exhaust area to be wrapped with its own hot exhaust gases, for smoke extraction, and then, for heat extraction, have all of the outer surface of a stove, fireplace or furnace exposed to said hot exhaust gases. Such a wrap-aroung design burns smoke from said exhaust gases, holds a high temperature in the firebox area, for good combustion, and increases the efficiency of heat extraction by using all of the outer surface of the stove, fireplace or furnace as a high temperature heat exchanger.

Abstract: This invention relates to a method and apparatus for the extraction of pollutant materials from the exhaust gases of a flue, chimney or smokestack and for the extraction and collection of any heat from such exhaust. The apparatus can be adjusted vertically and horizontally in length to obtain a high efficiency in the extraction of pollutant materials and heat from said exhaust gases. The design is for the pollutant material to be washed from the exhaust gases with said washing system to be mechanical and free from the problems of a pressurized water system. The design also is for the heat to be washed from the exhaust gases, which is usually lost to the outdoor air, with said heat transferred into other areas, or into a water storage tank.

Abstract: This invention relates to a method and apparatus for controlling the burn of coal, or fuel to produce the desired output of heat ranging from under 10,000 BTU per hour to over 150,000 BTU per hour, and the collection of said heat. It depends on the sizing of the grate, firebox and combustion area to produce the desired burn, the vertical exhaust pipes and soot and ash traps for self-cleaning and storing waste, the automatic controls for self-maintenance, the air washing system for cleaning the exhaust air of pollutants, the water heating coils and tanks for storing the produced heat, the chimney insulated compartments with gravel for accelerating heat absorption, and its own chimney that makes it a self-contained unit that can be located for use inside or outside of most any selected existing house or building.

Abstract: This invention relates to a method and apparatus for the extraction of the heat from the flue exhaust of a fuel burn in a furnace, stove or fireplace. The Heat Exchanger Flue can be adjusted vertically and horizonally in length to obtain a high efficiency in the extraction of the heat from said flue exhaust. The design is for the flue to have self cleaning features of soot and fly ash with storage and clean out areas, thus working well when coal is used for fuel. The heat can be extracted from said flue exhaust by air circulation or by water circulation. The design is flexable in the arrangements of the flue, thus allowing installation indoors or outdoors, or the combination of both.