Patent ID: 8991386
Filing Date: 2015-03-31
Classification: A47J

Abstract:
1. A firebox for a gas grill comprising an infrared re-emitter surface, at least one planar heat shield spaced apart from the re-emitter, and side walls intermediate between the heat shield and the re-emitter surface forming a box like structure in which: multiple small cross sectional area burner tubes with multiple small gas burner ports are disposed in an array between the heat shield and the re-emitter surface; and the heat shield below the burner tubes has openings disposed below the burner tubes that admit secondary combustion air and are sized and located such that they provide air cooling of the burner tubes sufficient to prevent preignition of the combustible fuel-air mixture in the burner tube prior to the exit of the combustible fuel-air mixture from the tubes through the gas ports.