Abstract: A firebox basket system for use in a firebox of a grill, including a bowl-shaped basket formed of annular rings of metal, the bowl-shaped basket including a pair of opposed divider supports secured to an inner surface of the basket, a flat bottom plate disposed in a bottom portion of the basket, and a divider plate having a pair of side edges that extend between a top and a bottom edge of the divider plate, wherein the side edges of the divider plate are slidably received in the divider supports, thereby dividing an interior volume of the basket into equal halves.