The firing normally lasts for as long as six days at a maximum temperature of 1,300 deg C, consuming as many as 1,000 bundles of firewood to maintain such high temperatures.

(Etsunan Kiln built in Echizen Town for common use)

This kiln, a type of kiln only available in Hongyo of Seto (Aichi Prefecture) and completed after the potter's great efforts to cope with a fuel (firewood) shortage, is a reproduction of such a kiln achieved under the direction of Tokuro Kato, a famous potter of Seto.