Abstract: A kiln of relatively simple design and low-cost construction is provided for firing ceramic ware. The kiln is of the shuttle type consisting generally of a rectangular enclosing structure with a movable floor which may consist of cars for supporting the ware. Burners are located along the lower part of each side wall and provided with air in excess of that required for combustion to produce high velocity streams of hot gas flowing vertically upward along the inside of the walls. The hot gas is redirected downward to flow through the ware and exhausted below the ware into horizontal flues on each side of the kiln from which gas is aspirated into the high velocity vertical gas streams for recirculation.