BURNER BOX LINER FOR LOW NOx EMISSION FURNACE
AssigneeLennox Industries Inc.
InventorsEric PEREZ, Randal Poirier, Eric Chanthalangsy, Steven Schneider
Life of this patent
Estimating the term…
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.
Claims21
1-20. (canceled)
A burner box assembly comprising:
- an outer cover having a top face and a sloped bottom face;
- a liner disposed within the outer cover and comprising a plurality of panel members, wherein the plurality of panel members comprise oppositely disposed panels, a top panel member, and a bottom panel;
- wherein the top face is generally parallel to the top panel member, wherein the sloped bottom face directs condensation away from a heat-exchange tube;
- a shield disposed between the liner and the sloped bottom face 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.
A burner box assembly comprising:
- an outer cover having a top face and a sloped bottom face;
- a liner disposed within the outer cover and comprising a plurality of panel members, wherein the plurality of panel members comprise oppositely disposed panels, a top panel member, and a bottom panel;
- wherein the top face is generally parallel to the top panel member, wherein the sloped bottom face directs condensation away from a heat-exchange tube;
- and
- a tubular member coupled to at least one of the plurality of panel members.
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 having a top face and a sloped bottom face;
- a liner disposed within the outer cover and comprising a plurality of panel members, wherein the plurality of panel members comprise oppositely disposed panels, a top panel member, and a bottom panel;
- wherein the top face is generally parallel to the top panel member, wherein the sloped bottom face directs condensation away from 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.