Hello! Drying of a red oak, complex(difficult) process. The pine is dried more easy. The vacuum dryer is recognized the best for drying firm grades of a tree. I have lead(carried out) many(a lot of,much) experiment with vacuum drying and have drawn a conclusion: it is possible to do(make) an output(exit) of free water without vacuum. For this purpose I have made a drying complex. Costs(stands) cheaply and dries three times more! The vacuum is not necessary for a conclusion of free water. The oak will burst on air without humidifying. All boards, after a saw should get during 3 days in the drying chamber! I do(make) so. Sergey.
