Fans 26 are present to generate air flow through the wood drying kiln chamber
. Fans 26 and hot air duct system 24 are situated in an enclosed region 34 above the wood drying kiln chamber that communicates with the wood drying kiln chamber through slots 36 that extend the length of the wood drying kiln chamber. Enclosed region 34 is formed with an insulated domed upper surface 38 to assist in smoothly directing air flow into the wood drying kiln chamber.