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Steam boiler venting duct

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melo
melo Posts: 108
in Strictly Steam

IMG_2909.jpeg IMG_2910.jpeg IMG_2911.jpeg

Never really noticed this before but recently had my chimney cleaned. Is this going to be a problem?

Comments

  • mattmia2
    mattmia2 Posts: 18,416
    edited November 14

    it is not great workmanship but if that leaks you have bigger problems. there should be negative pressure created by the chimney so if it is working correctly air will be pulled in the gaps, not combustion products spill out.

  • Jamie Hall
    Jamie Hall Posts: 27,989

    Sloppy install. Makes we wonder about the rest of the job. But I do see a screw holding it. Sort of. So as @mattmia2 said, if the chimney is OK… leave it be.

    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    mattmia2
  • EdTheHeaterMan
    EdTheHeaterMan Posts: 12,981
    edited November 14

    Probably not an issue.

    1. the crimps are the wrong way, that is just a minor fault with the person who installed the original vent connector (vent connector is the technical term for smoke pipe).
    2. The chimney cleaning company just put it back incorrectly, but it is not a safety issue because of what @mattmia2 said. Any leaks in the vent connector will leak basement air IN to the vent and up the chimney
    3. Hard to tell from the angle of the camera but there should be a 1/4" rise per foot on any horizontal vent connector so the higher end is closest to the base of the chimney.

    I don't think you need to worry unless you find a venting problem where the spill switch or the roll out switch causes you to have no heat. Then I would look into that more closely.

    Edward Young Retired

    After you make that expensive repair and you still have the same problem, What will you check next?

    mattmia2
  • melo
    melo Posts: 108

    I’m not worried about it coming off cause it seemed pretty solid. I was more worried about the slight dip before it meets the piece into the chimney.

  • pecmsg
    pecmsg Posts: 7,644

    is it piped properly….No

    Is it dangerous……possibly

    “Should” it be done correctly…..Yes


    in the mean time look for a couple of “low Level” CO detectors until it’s changed

    mattmia2
  • melo
    melo Posts: 108

    have multiple detectors.
    how would it be fixed up?

  • pecmsg
    pecmsg Posts: 7,644

    UL Approved CO detectors are almost worthless. 70 PPM for up to 4 hours. Non UL approved “Low Level” will alarm as low as 10 PPM immediately

  • melo
    melo Posts: 108

    I have one that even records any type of ppm reduction. There is also a window thats stays slightly open.

  • Jamie Hall
    Jamie Hall Posts: 27,989

    https://forum.heatinghelp.com/discussion/comment/1909562#Comment_1909562

    That depends on two things: first, is it possible to provide some uniform slope to the connector? If it is, the objective is to eliminate the dip which could collect condensate and over time rust out. But… if the part of the connector mortared into the chimney is really in there, it gets more complicated as you would need to redo the whole thing. One would have to look at it as a whole.

    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England

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