Kiln

A kiln is a thermally insulated chamber, a type of oven, that produces temperatures sufficient to complete some process, such as hardening, drying, or chemical changes. Kilns have been used for millennia to turn objects made from clay into pottery, tiles and bricks. Various industries use rotary kilns for pyroprocessing—to calcinate ores, to calcinate limestone to lime for cement, and to transform many other materials.

Charcoal kiln in California
Indian brick kiln
Hops kiln
Farnham Pottery, Wrecclesham, Surrey with the preserved bottle kiln on the right of photo
Catenary arch kiln under construction
An empty, intermittent kiln. This specific example is a "car kiln"; the base is on wheels and has been rolled out of the kiln—this facilitates loading and unloading the kiln.