Complementary device for a heating installation

Details Complementary device for a heating installation Complementary device for a heating installation

F - Mech Eng,Light,Heat,Weapons

28

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126/9.5

F28F 3/02 (2006.01) F23J 15/06 (2006.01) F23L 17/00 (2006.01) F28D 21/00 (2006.01)

Patent

CA 1174923

ABSTRACT Complementary device which is incorporated in the combustion gas discharge duct of a gas- or oil-fired heating apparatus with a liquid or air circuit, substantially comprising a supply and a discharge connec- tion for the combustion gases to be passed through, a heat exchanger to be installed between the combustion gases and the liquid or air circuit, and a fan with which the combustion gases can be forced past the heat exchanger. Means are provided by which, if the fan is operating the combustion gases are forced to flow through the heat exchanger, to be subsequently led in the direction of the combustion gas discharge, and by which, of the fan is not operating or is operating inadequately, the combustion gases from the heating apparatus are led - at least in part - direct to the combustion gas discharge duct. The heat exchanger extends at most partly into the combustion gas discharge duct, and means are present to lead the gases, after heat exchange, obliquely upwards into the combustion gas discharge duct in such a manner that they form a gas shield extending substantially across the transverse section of the combustion gas discharge duct.

393982

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