EXTERNAL CONDENSATION BOILER Russian patent published in 2016 - IPC F24H1/00 

FIELD: power engineering.

SUBSTANCE: invention relates to power engineering and can be used in making outdoor-type condensation boilers. Outdoor-type condensation boiler consists of a water-seal, thermally insulated body with a door, inside which there are gas burner device, main heat exchanger with direct and return lines, coaxial flue connected to a stack, additionally installed condensation heat exchangers arranged in one coaxial flue and connected in parallel in the lower part with the return line of the building heating system, and in upper part connected with water-heating jacket of the main heat exchanger of condensation boiler; at that, on the rear wall of condensation boiler there is a centrifugal fan, and in the lower part of the coaxial flue pipe a soot collector is installed with condensate drainage tube, the main heat exchanger and a coaxial flue being insulated with heat insulation.

EFFECT: technical result, which can be obtained using the invention, consists in simplified design, and reduced dimensions and weight of the boiler.

1 cl, 1 dwg