Abstract: The barbecue grill is configured to use fluid fuel (e.g., propane), solid fuel (e.g., charcoal or wood), or both. Two solid fuel support grates are provided above a pair of gas burners, so that the gas flame can be used to ignite the solid fuel above the burners. The two solid fuel grates are relatively movable to shake down burned ash into a collection tray below the gas burners. Two flame control grates are installed above the solid fuel grates. The spacing between the flame control grates is adjustable to control the amount of flame and heat passing to the overlying vertically adjustable cooking rack. The two flame control grates are configured to allow liquid fat and juices to run between the members of the upper grate and into corresponding spaced apart channels in the lower grate, where they run off to be collected in a container for disposal.

Abstract: A cooking grill for cooking over open flame having multiple parallel grids which are capable of displacement relative to each other, with the grids, comprised of channels which are offset from each other. The displacement of the grids and the offset of the channels controls the amount of flame which reaches foods placed upon a top grid.