GB190308590A - Improvements in Water-heating and Air-heating Furnaces or Stoves - Google Patents

Abstract

8590. Shaw, T. P., and Paddon, J. E. H. April 15. Water and air heating stoves.- Relates to heaters for hot-water and hot - air heating- systems. Fig. 1 shows one form of water heater. An elongated vertical combustion chamber h, open at the top end but closed at the bottom end i, contains a gas, vapour, or oil burner 8, or a coal fire. The walls of this chamber are so arranged that air for combustion from the annular chamber e, after passing up the space r and down the space s, enters the chamber at t, and is heated. The gas also, when gas is used in the burner, is heated before combustion by leading the gas-pipe round the top of the combustion chamber, and down the space s, to the burner. A series of vertical water tubes 5 are connected at their lower ends to the " distri- " buting-member," to which the return pipe of the heating-system is connected at d, and at their upper ends to the " concentrating-member," to which also the heating-system is connected at 3. The products of combustion, after circulating between the vertical tubes, being deflected in their passage by the baffle-plate b, escape to the chimney through damper-controlled branches w, v in an internal casing y. The air for combustion enters the outer casing at 85 and passes down to the chamber e, which is provided with regulable openings f. In a modification, Fig. 4, the water tubes 5 are bent outwardly at their lower ends and connected to an annular chamber 19, to which the return pipe is connected. The baffle-plate b is located in the "draught-chamber" 20. Fig. 7 shows an arrangement for heating air, in which tubes 5 are carried through the top and bottom of the apparatus. Cold air is admitted at 21, and pipes 23 conduct the heated air away.