GAS HEATING BOILER Russian patent published in 2008 - IPC F24H1/00 F23J15/02 

FIELD: the invention is assigned for cleaning air from combustion products and may be used in water heaters and heating apparatus.

SUBSTANCE: the boiler has a rectangular cupboard with heating protection and a jacket in which there a fire-chamber with a burner, a heat exchanger and an outlet socket of combustion products through an exterior wall of the premises on which there is a hermetically installed cassette with absorbing substance. The outlet socket has a cone-shaped nozzle with curvilinear planes and guide twisting ribs. The cone-shaped nozzle is fulfilled out of a bimetal, at that the material of the bimetal has from the side of the curvilinear planes a coefficient of thermal conductivity prevailing in 2,0-2,3 times higher the meaning of the coefficient of thermal conductivity of the material from the side of environment.

EFFECT: the invention provides maintaining of normalized parameters of the work of the gas heating boiler during prolong operation at availability of an impact on the cone-shaped nozzle as of positive so as of negative temperatures of the environment.

3 dwg