Abstract: A revetment block includes a top surface, a bottom surface, a first pair of parallel, opposing sidewalls extending between the top surface and the bottom surface, and a second pair of parallel, opposing sidewalls extending between the top surface and the bottom surface and each extending between a first sidewall of the first pair of parallel and a second sidewall of the first pair of parallel, opposing sidewalls. The revetment block further includes a horizontal duct extending from the first sidewall to the second sidewall, wherein the horizontal duct is parallel with the bottom surface. The top surface has a non-parallel relationship with the bottom surface, wherein the top surface includes a leveling pad adjacent the first sidewall. The leveling pad is configured to cause a second horizontal duct of a second revetment block stacked on the top surface to be parallel with the first horizontal duct.

Abstract: A barbecue cooking apparatus is provided. The barbecue cooking apparatus includes a firebox comprising a housing having solid walls. A charcoal tray is disposed within the housing, and one or more vents are disposed in the housing above the charcoal tray. One or more vents are disposed in the charcoal tray. An upper interior chamber within the housing above the charcoal tray is configured to hold wood and charcoal. A lower interior chamber within the housing below the charcoal tray is configured to provide a volume for the collection of wood ash. A duct is attached to the housing and forms a passageway from the lower interior chamber for heated air and wood smoke.