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.
Claims16
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 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;
- a tubular member abutting at least one of the plurality of panel members;
- wherein the liner is heat-resistant;
- and
- wherein the liner and the tubular member are constructed of a ceramic wafer board.
Dependencies are inferred from the claim text.