A pit extension includes an extension body, the extension body defining an extension bottom end and an extension top end, the extension body defining an extension inner surface and an extension outer surface, the extension inner surface defining an extension bore extending from the extension bottom end to the extension top end; and a plurality of legs, each leg of the plurality of legs comprising an attached portion and an extended portion, the attached portion of each leg attached proximate to the extension bottom end of the extension body, the extended portion of each leg extending downward from the extension bottom end, the extended portion of each leg configured to attach to a top end of a pit liner.