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Chimney systems

 

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Errors during the construction of system chimneys

Certain errors should be avoided in order to have a fully functioning chimney system. Below, we present the most common mistakes such as leaning ceilings against a chimney or the connection of several heating units to a single emissions channel.

The 10 most common mistakes made during the construction of chimney systems:

  1. The leaning of ceilings or other building construction elements against a chimney. Dilatation from flexible materials as necessary.
  2. Emissions channels adjacent to flammable elements of roof construction, which leads to the danger of fire.
  3. Connection of two heating units to the same emissions channel. This does not apply to Hoch TURBO chimney systems for furnaces with a closed combustion chamber.
  4. Improper diameter of the emissions channel - may lead to a backup of emissions in connection with a worsened chimney system draft.
  5. Improper installation of the steel flue - vertical section of an emissions pipe, which should be at angle of at least 5% and cannot be longer than 2 m.
  6. Missing or poor sealing of the steel flue in a ceramic emissions T-pipe; a proper expansion gap must be maintained, which should be filled with a ceramic cord.
  7. No drain to channel condensation to a sewage system (in the case of liquid fuels or fireplace with a water jacket). This may lead to an unpleasant odour inside premises.
  8. Leaky clean-out hatch – danger of indoor smoke.
  9. Chimney finishing or masonry with porous brick. Full class 500 brick is recommended.
  10. Overly shallow insertion of chimney flashing under roofing - this may cause leakage, particularly in wavy roofing.
 

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