BURNER BOX LINER FOR LOW NOx EMISSION FURNACE
AssigneeLennox Industries Inc.
InventorsEric PEREZ, Randal POIRIER, Eric CHANTHALANGSY, Steven SCHNEIDER
Life of this patent
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Abstract
A burner box assembly according to aspects of the disclosure includes an outer cover, the outer cover having a sloped bottom face that directs condensation away from a heat-exchange tube, a heat-resistant liner having a plurality of panel members, the heat-resistant liner being disposed within the outer cover, a shield disposed between the heat-resistant liner and the sloped bottom face of the outer cover such that an air gap is formed between the shield and the sloped bottom face, and a tubular member abutting at least one of the plurality of panel members and disposed within the heat-exchange tube.
Claims20
A burner box assembly comprising:
- an outer cover, the outer cover comprising a sloped bottom face that directs condensation away from a heat-exchange tube;
- a heat-resistant liner comprising a plurality of panel members, the heat-resistant liner disposed within the outer cover;
- a shield disposed between the heat-resistant liner and the sloped bottom face of the outer cover such that an air gap is formed between the shield and the sloped bottom face;
- and
- a tubular member abutting at least one of the plurality of panel members and disposed within the heat-exchange tube.
A burner box assembly comprising:
- an outer cover,
- a heat-resistant liner comprising a plurality of panel members, the heat-resistant liner disposed within the outer cover;
- and
- a tubular member coupled to at least one of the plurality of panel members and disposed within a heat-exchange tube.
A furnace assembly comprising:
- a fresh-air intake;
- a supply line fluidly coupled to the fresh-air intake;
- an intake manifold fluidly coupled to the supply line;
- a pre-mix burner fluidly coupled to the intake manifold;
- a burner box assembly containing at least a portion of the pre-mix burner, the burner box assembly being thermally exposed to the pre-mix burner, the burner box assembly comprising:
- an outer cover comprising a sloped bottom face;
- a heat-resistant liner comprising a plurality of panel members, the heat-resistant liner disposed within the outer cover;
- and
- a tubular member abutting at least one of the plurality of panel members and disposed within a heat-exchange tube;
- the heat-exchange tube being fluidly coupled to the burner box assembly;
- and
- a fan fluidly coupled to the heat-exchange tube.
Dependencies are inferred from the claim text.