Downdraft Kiln (倒焰窑)

Downdraft kilns (倒焰窑, Dao Yan Yao) are single-chamber kilns with one or two fireboxes on either side of the kiln-chamber and a central bottom chimney originating below the chamber. The bottom chimney causes heat to circulate through the kiln, pulling the rising heat back down into the firing chamber before exiting. The outside firebox is attached to the kiln by a “bag wall”, which protects the wares from direct exposure to the flame and reduces the amount of thrown ash.