Drive-through chamber type timber drying kiln

A drive-through chamber drier for timber where the timber loads (P) to be dried are carried on a roller track (10) through a front door (11) into the drying chamber. From the drying kiln,thet imber loads (P) are removed after drying from the opposite side of the drying kiln through a rear door (13). The drying kiln comprises two or more drying chambers (K,, K3; K2=, K4) connected in series. Of these chambers (K1, K3; K2, K4) connected in series, each chamber operates independently in such way that when the timber loads are moved from a first chamber (K1, K3) to the second chamber (K2, K4), the drying will be carried on in this chamber (K2, K.) starting substantially at the point which had been reached in the drying process in the first chamber (K1, K3).