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17 replies
Build chimney shaft with "bookshelf"
The switch currently there is just a stair switch for a lamp we don't use. Additionally, the idea is to replace the door with a sliding door when we renovate the bedroom. But thanks for the tip 😃noone70 said:
Hm, I missed a bit there. It will have to be all plasterboard then, and I'll have to attach battens for the shelves with plasterboard anchors.DIY_freak said:Copied from the manual.
It is permissible to completely or partially encase the chimney in a
surrounding shaft. The shaft must be constructed of non-combustible
building boards or plasterboards. The boards must be joined
in the corners with metal brackets or with externally mounted
wooden battens. The distance between the outer mantle of the chimney and
the inside of the shaft must be 50 mm. If the shaft connects to
the cap on the outer roof, ventilation takes place via the air gap under
the cap roof. If the shaft does not connect to the cap, a vent
with an opening of 30 cm² must be installed high up on the shaft for
ventilation.
To allow inspection of the chimney, an
inspection hatch, measuring 300x300 mm, must be installed in an
easily accessible and inspectable location in the shaft wall.
However, the construction proposal was discussed with those who sold the stove and also installed it. But right is right, of course. Thank you for taking the time to look it up.
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Fires caused by improper installation of modular chimneys have been a recurring theme in the experiences category of the Swedish Civil Contingencies Agency's magazine Tjugofyra7 for a long time now. Unfortunately, many seem to believe that a modular chimney is like any other sewer pipe or such. What must be realized is that a modular chimney that is supposed to maintain a maximum surface temperature of 80 degrees can only achieve this if the surface is ventilated. The insulation in the chimney does not stop heat - it only slows the spread of heat. If you build the chimney into a tight shaft, the surface will gradually approach the temperature of the flue gases during prolonged burning. However, if the chimney is freestanding, the surface is continuously cooled by the room’s air and remains below 80 degrees.
Moreover, most modern wood stoves are often fired significantly harder than both the stove and the chimney are designed for, further increasing the heat impact.
The fire cause investigations conducted on fires occurring in connection with modular chimneys often reveal very inadequate knowledge among chimney installers and craftsmen performing other tasks such as additional insulation around chimneys. Unfortunately, even chimney sweeps performing fire safety inspections do not always seem to be fully on board when it comes to the installation of chimneys.
Moreover, most modern wood stoves are often fired significantly harder than both the stove and the chimney are designed for, further increasing the heat impact.
The fire cause investigations conducted on fires occurring in connection with modular chimneys often reveal very inadequate knowledge among chimney installers and craftsmen performing other tasks such as additional insulation around chimneys. Unfortunately, even chimney sweeps performing fire safety inspections do not always seem to be fully on board when it comes to the installation of chimneys.
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