Is possible

If moisture leakage is observed in the old furnace, then it will be eliminated by laying part of the chimneys. In such cases, it is possible to increase the thickness of the walls of the chimney, which for reliability are covered with additional insulation, and the stove stoves formed on the walls are cleaned. At the end of the repair, the furnace is redeemed again and, in the future, drowning without the formation of smoke and pompers.