The principle of condensation drying consists of heating the air which ciruclates through the stacked wood. This by means of fans. The air will absorb more and more moisture from the warmer wood. When a temparture of at least 30°C has been reached and the desired humidity has been reached, the dehumidification process will start. The cooler sucks in the moist air, which cools it down strongly and releases the absorbed condensate. The released condensate is discharged to the outside.