Question: what is the difference between kiln dried and heat treated wood?
Answer: Heat-Treated, Kiln-Dried – What's the Difference? Kiln-dried lumber is not the same things as heat-treated lumber. Wood is kiln-dried to reduce the moisture content by heating it in large oven rooms, or kilns. The wood is dried to reduce the weight and prevent excessive warping, but it is not sterilized.