The largest wood fired ceramic kiln is the Jingdezhen Zhen Kiln measuring 260.03 cubic meters (919.24 cubic feet). It was certified at the Exhibition Region of Old Kiln Folk Customs in Jingdezhen city, Jiangxi province, China, on 22 October 2009.

The kiln is in the shape of an egg. It is 18 meters (59.05 ft) long, 5.6 meters (18.37 ft) at the tallest point and 2.6 meters (8.53 ft) at the lowest point, the widest point is 4.6 meters (15.09 ft) and the narrowest point is 3 meters (9.84 ft). It uses about 40,000 kg (66,138.67 lb) of pine wood for one session to burn about 20,000 pieces of ceramic items.