Low pressure drop fireplace heat exchanger

Details Low pressure drop fireplace heat exchanger Low pressure drop fireplace heat exchanger

F - Mech Eng,Light,Heat,Weapons

24

B

F24B 1/18 (2006.01) F24B 1/188 (2006.01)

Patent

CA 2044767

ABSTRACT A heat exchanger for use in a fireplace assembly having walls surrounding a fire combustion chamber, an air passage provided therein and a flue assembly for exhausting combustion chamber effluent. The heat exchanger includes a housing adapted to be mounted in the fire combustion chamber and communicating with the air passage. The housing has a first housing wall, a second housing wall and intermediate walls connecting the first and second housing walls. The first housing wall has an opening therein to receive combustion chamber effluent. The second housing wall has an opening for emission of combustion chamber effluent which is adapted for communication with the flue of the fireplace assembly for exhaust of the combustion chamber effluent from the fireplace assembly. Intermediate walls connect the first and second housing walls in a spaced relation. Diversion means are fixed in the housing to form at least one elongated heat exchange surface to guide and direct combustion chamber effluent through the heat exchanger along a tortuous path and provide extended heat transfer surfaces. The extended heat transfer surfaces serve to provide heat to a first air conduit formed between the first housing wall and the diversion means, a second air conduit within the diversion means and a third air conduit formed between second housing wall and the diversion means. The air passage is in fluid communication with the air conduits and the air conduits are in fluid communication with the atmosphere

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