Abstract: The present invention relates to a boiler having horizontally arranged flat rectangular water tubes comprising: a water chamber; an inner water chamber to be connected with horizontal water tubes, said horizontally arranged water tubes forming multi-step water tube groups; induction plates provided in the inner water chamber blocking the water path of the horizontal water tubes alternatingly in such a manner as to bend the water path in a zigzag manner; an exhaust gas discharge conduit in straight lattice lines formed by narrow gaps between the horizontal water tubes; and an exhaust gas discharge chamber formed in an upper water chamber. The flat horizontally arranged rectangular water tubes are narrow in their width, making it possible to arrange them densely in the limited space of the combustion chamber, and with their increased heat receiving areas, the water tubes can heat the water in the boiler fast.

Abstract: A self-sustaining boiler system for generating usable energy and heat without creating pollution. The self-sustaining boiler system includes a boiler capable of generating efficient usable energy and heat, and also includes an exhaust purifying assembly being in fluid communication to the boiler for removing the pollutants from the exhaust generated by the boiler, and further includes a fuel source assembly being in fluid communication to the boiler for providing fuel to the boiler.

Abstract: The present invention relates to a boiler having horizontally arranged flat rectangular water tubes comprising: a water chamber; an inner water chamber to be connected with horizontal water tubes, said horizontally arranged water tubes forming multi-step water tube groups; induction plates provided in the inner water chamber blocking the water path of the horizontal water tubes alternatingly in such a manner as to bend the water path in a zigzag manner; an exhaust gas discharge conduit in straight lattice lines formed by narrow gaps between the horizontal water tubes; and an exhaust gas discharge chamber formed in an upper water chamber. The flat horizontally arranged rectangular water tubes are narrow in their width, making it possible to arrange them densely in the limited space of the combustion chamber, and with their increased heat receiving areas, the water tubes can heat the water in the boiler fast.

Abstract: A heater comprising two separate tube nests of which one (29) heats the circulating water by condensation and supercooling and the other (39) heats a partial flow of this water by the desuperheating of steam. Steam is admitted through pipe (16). The foregoing partial flow of water comes from the desuperheating zone of a heater located downstream and is admitted through a manifold (41). Pipes (39) are wound round a central drum (43).

Abstract: A heat exchanger including a plurality of tubes arranged in at least three side-by-side planes, the tubes being held at their ends in the sidewalls of an even-sided polygon of at least six sidewalls, each sidewall being connected to its opposite sidewall by tubes in at least one of the planes.

Abstract: This invention comprises a furnace heating device having a fire box and hollow tubing extending longitudinally through the internal portion of said fire box through which a heating medium is circulated to outside radiators. The fire box has an ash drawer extending through the bottom portion of the fire box adjacent to the coiled tubing.

Abstract: A gaseous fuel mixture burner which includes a mixer device into which gas is injected so as to provide a gaseous vortex formation within the mixer, air being drawn into the device and mixed with the gas by the low pressure region created within the vortex.