Heat treatment has long been known as a way to improve the resistance to decay of wood. Past generations charred the parts of the timber to be inserted into the ground, as this resulted in a significant increase in the service life of structures in contact with the ground.
............Today’s heat treatment has lasting effects on the properties of wood. In addition to its being more resistant to decay and weathering, the insulation characteristics of wood improve and the expansion and contraction of wood as influenced by variations in its moisture content are reduced as are changes in shape. The colouring of wood darkens beautifully during treatment.