The drum, its had food grade silicone fluid in it. Installed bolts to hold the grates. The burn out. Almost done with burn out After done with the burn out, I washed it done while still hot and it worked just like a steam clean. Installed 1" chase nipples and rigid conduit couplings for the air vents. Installed ball valve for air control. Built a fire box Found a wok at a local Oriental grocery store, make it work perfect for a grease catch.