Kilns are thermally insulated chambers, or ovens, in which a controlled temperature regimes are produced. They are used to harden, burn or dry materials. Specific uses include: To dry green lumber so that the lumber can be used immediately Drying wood for use as firewood Heating wood to the point of pyrolysis to produce charcoal For annealing, fusing and deforming glass, or fusing metallic oxide paints to the glass' surface For cremation (at high temperature) Drying of tobacco leaves Firi… (More on Kiln)