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Renovation of the gas installation in the apartment (replacement with welded ste

yabollek 32682 6
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 15149165
    yabollek
    Level 10  
    Some time ago I renovated an old bolted installation for a welded installation. Gasworkers did, a leak test (pressure) was made and I was left like that, claiming that it was good to issue paper with the above test. Then the gentleman came with the gas, hooked up the meter dismantled for the duration of the renovation and also had no comments (the pipes were still visible in the furrows = not built-up).
    Then the renovation team came in. The old walls, as in buildings from the 1960s, were leveled with K / G boards so that the entire gas pipes disappeared, which aesthetically looks great ...

    The installation is simple, 3 vertical sections (from the counter in the hall up, in the bathroom down to the "junkers", in the kitchen down to the gas hob) and one level (passage through the bathroom to the kitchen).

    Tomorrow, the gas technicians sent in front of the administration who periodically inspect the gas installation are to enter for the first time ... I read on the internet and I am confused whether I will pass the inspection without any problems. Some say that pipes (even welded steel pipes) cannot be built in at all, others that you can, but there must be a revision on the welds so that the gas worker can check if there is a leak in this place, others write that they build in the whole and have no problem with it.

    Can someone tell me what the law says about the above-mentioned cardboard/plaster buildings that have already been made at my place? Will gas workers stick to it and I will have to forge the walls again and make corrections, or will it be enough for them to just make revisions so that they can see the welds and examine them with a probe.

    In the risers, I can make revisions in places where the welds fall out and insert such tiny ventilation grilles in plasterboard (e.g. 8cm) so that during the inspection I can put my probe there ... All risers will be covered with cabinets so you won't see anything.

    In the bathroom, however, I have a gas pipe completely covered with a non-detachable ceiling made of plasterboard and the only places where you can look into it are the holes for lighting (GU10) and they will not get to the welds.

    My question is as follows, will I pass the inspection according to the current regulations or will I have to, for example, make revisions at the welds (everything is ok except for the wretched ceiling) or, even worse, redo the gas installation again?
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  • #2 15149340
    poldekdaniel
    Level 15  
    Anyone want to watch welds?
    In the construction of gas pipes, the point is that the gas (in the event of a leak, failure)
    could be easily detected, e.g. with a detector.
    If there are no grilles made in this building, first of all (in the event of a leak) the gas concentration may be high and no one will detect it by smell yet.
    And secondly, there is no place to put the probes from the detector during the inspection - review to check if everything is okay.

    So you need to make ventilation grilles in the buildings for your and others safety :)

    quote from technical conditions:
    § 165. [Gas installation technical solutions] 1. The technical solutions of the gas installation should enable self-compensation of thermal elongations and eliminate possible deformation of the installation, caused by deformation or subsidence of the building.
    2. Gas lines in basements and basements should be carried out on the surface of the walls or under the ceiling, while on the other floors above ground it is allowed to carry them also in furrows covered with unsealed screens or filled - after a leak test of the installation - with an easily removable plaster mass, which does not cause corrosion of the pipes. It is forbidden to fill grooves in which copper pipes are routed.
    3. Gas ducts made of steel pipes, after the tightness test, should be protected against corrosion.


    In your case, the building made of plasterboards with ventilation grilles is an unsealed screen, and it does not say that it must be removable or disassembled.
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  • #3 15149474
    yabollek
    Level 10  
    So I understand that it is enough to make 1 hole as high as possible (for aesthetic purposes with a sleeve as for door ventilation) in each plate that covers this gas pipe. The hole will be at the pipe itself so that during the leak the gas has somewhere to get out into the rooms, alarming with the smell of leaks and so that gentlemen have a place to put the probe in order to check whether something is gently leaking.
    Do you think this solution will be ok and the control will not have anything to stick to?
  • Helpful post
    #4 15151591
    poldekdaniel
    Level 15  
    For now, do as you write, i.e. insert the bars at the top, and in case of anything else after the inspection you will get guidelines on what to do to make it good and safe.
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  • #5 15164456
    yabollek
    Level 10  
    Thanks for the tips.
    I drilled ventilation holes in plasterboard and the inspector was satisfied with the condition of the gas installation in my apartment - 0 comments...

    He had one remark only to the length of the flue gas duct of the gas stove (he was checking the condition/tightness of the gas receivers at the same time), he claimed that it could be a maximum of 2 m (simplification that everyone remembers). After showing him the termet's instruction, which shows that 2m applies only to the "horizontal" section, he admitted his mistake and said that he would remember it because it was valuable information. My cable is 2.20m in total and the "horizontal" section is 1.8m

    Extract from the manual
    3.1.3 Instalacja odprowadzająca spaliny
    Przewód  spalinowy  powinien  wychodzić  z urządzenia pionowo (min. 220mm) do pierwszego kolanka.
    Odcinek  poziomy  biegnący  do  kanału spalinowego ze wzniosem min. 5% (ok. 3º), nie powinien przekraczać długości 2m (rys. 3.1.3.1).



    Another visit in a year, we'll see if the same man will be there, if not, I'll probably have to take out the termet's manual again :D
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  • #6 15166704
    poldekdaniel
    Level 15  
    Very valuable tips for all interested :)
    And in addition, I knew that there would be no problem with the reception (after all, we have been working with plasterboard buildings for about 15 years)
    What to add - My congratulations :) and best regards.

    p.s. I remembered that once a guy (an older guy) came to pick up the gas installation and had terrible objections - regarding the installation of gas pipes - gypsum board with grilles of course - after a small argument - he gave up with frills - he just couldn't find the regulations (or didn't want to ) for these screens . He wanted everything to be outside and painted yellow! LOL. It's hard for me to imagine a well-made apartment with a yellow pipe under the ceiling :)

    greetings .
  • #7 15192933
    serwo66
    Level 25  
    It is written in the law that you can plaster with "easily removable mass", but it is not written anywhere what is an easily removable mass. For one, it is gypsum, or any other mortar, that is discretionary.

Topic summary

The discussion revolves around the renovation of a gas installation in an apartment, specifically the transition from a bolted to a welded system. The user describes the installation process, including a leak test conducted by gas workers and the subsequent inspection by gas technicians. Concerns were raised about the lack of ventilation grilles in the building, which are necessary for safety in case of gas leaks. Suggestions included creating ventilation holes in the plasterboard to allow gas to escape and facilitate inspections. The user successfully passed the inspection with minor remarks regarding the flue gas duct length, clarifying regulations about horizontal sections. The conversation highlights the importance of compliance with safety standards and proper installation practices.
Summary generated by the language model.
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