F - Mech Eng,Light,Heat,Weapons – 24 – B
Patent
F - Mech Eng,Light,Heat,Weapons
24
B
F24B 1/189 (2006.01)
Patent
CA 2082915
A fireplace comprises a firebox having a top panel, bottom panel, rear panel and a flue. An outer casing is spaced from and surrounds the firebox. A combustion air feed passage for supplying combustion air to the firebox is provided. A heat exchanger, which is located downstream from the flue for receiving the combustion gases and for transmitting the heat from the combustion gases to air to be heated, is also provided. The fireplace includes a passage for conveying the combustion gases from the flue to a conduit in communication with a source external to the room in which the fireplace is situated for exhausting the combustion gases from the fireplace and a switch for selectively coupling the heat exchanger in series with the passage. The switch is operable between a first position which the flue gases pass through the heat exchanger before being vented to the outside and a second position which the flue gases pass through the passage, bypassing the heat exchanger, and are then vented to the outside. A second passage is provided between the outer casing and the firebox for circulation of air to be heated along with the heat exchanger.
Lilley Clifford
Schroeter Wolfgang
Kvas Christopher J.
Wolf Steel Ltd.
LandOfFree
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