Cooker with venturi assemblies for air flow

A cooker comprising:

• a base comprising an exterior wall having three or more sides and defining an interior void surrounded by the exterior wall;
• a fire bowl that includes a flanged rim at the top of the bowl;
• a top surface that is mounted on the top of the base and has a perimetric shape that corresponds to the cross-sectional shape formed by the exterior wall and that defines an aperture that corresponds with the interior void and is configured to receive the fire bowl into the interior void and provides a surface for receiving the flanged rim of the fire bowl;
• and
• a plurality of venturi assemblies, wherein each of the plurality of venturi assemblies is mounted through an aperture in one of the three or more sides of the base,
• wherein each of the plurality of venturi assemblies comprises:
• a rectangular block, wherein the rectangular block defines a venturi void that passes through the block from a first end to a second end;
• and
• wherein the venturi void is characterized by a first opening on the first end that tapers down towards a circular pinch within the interior of the rectangular block, and then tapers out to a second opening on the second end.