F - Mech Eng,Light,Heat,Weapons – 24 – B
Patent
F - Mech Eng,Light,Heat,Weapons
24
B
F24B 1/189 (2006.01)
Patent
CA 2166943
A fireplace with a cooling air passageway within the fireplace housing that maintains the forward portion of the housing top wall cool during operation. The fireplace includes a combustion chamber, a flue, and an outer housing that encloses the combustion chamber. Plenums formed between the walls of the outer housing and the combustion chamber walls are used to circulate room air to keep the housing cool. Disposed within a forward portion of the upper plenum above the combustion chamber is a passageway constricting baffle. The baffle constricts the cross-sectional area of the upper plenum through which the cooling air flows and forces the cooling air flow upwardly against the underside of the housing outer top wall, thereby cooling this portion of the housing which typically is difficult to keep cool. The fireplace also includes a baffle which directs cooling air outlet from the upper plenum to a venturi passageway in communication with the flue. The baffle and passageway cooperate to induce a draft of cooling air through the upper plenum when access doors to the combustion chamber are either open or closed.
Monessen Hearth Systems Company
Smart & Biggar
LandOfFree
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