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Horizontal Vent Buderus G124X?

Cwanty_03
Cwanty_03 Member Posts: 4
in THE MAIN WALL

Hello All!

I am having some chimney water leaking issues on my old farmhouse that has a G124X boiler as its exclusive heating source. Weird chimney detail coming out of a metal roofed dormer near a weird flashing detail!

Anyway, I’d like to eliminate my chimney coming out of the roof in order to fix the leaking problem. This would mean I need to horizontal vent my boiler. (If that’s an option?). 

I’m having a hard time finding exact specs on this other than the flue pipe needing 1/4” rise per foot (page 26 #4) to the chimney.


I have an email into the company but I’m reaching out here. Thank you in advance!

Comments

  • HVACNUT
    HVACNUT Member Posts: 6,713
    Screenshot_20250412_084041_Drive.jpg

    So the answer would be a hard no. Fix the leak. That boiler needs to vent into a vertical chimney.

  • Derheatmeister
    Derheatmeister Member Posts: 1,647

    I think that the Buderus could be side wall vented with a Fields or tjerulund.

  • Cwanty_03
    Cwanty_03 Member Posts: 4

    I would have to take a measurement, but it really wouldn’t have to get vented that far. Probably like 13 or 14 feet worst case scenario, I just ripped the brick chimney down and get a sleeve for a roof extrusion.

    Derheatmeister
  • HVACNUT
    HVACNUT Member Posts: 6,713
    https://forum.heatinghelp.com/discussion/comment/1852075#Comment_1852075

    13 or 14 feet with how many bends? You better get all your ducks in a row.

  • Cwanty_03
    Cwanty_03 Member Posts: 4
    https://forum.heatinghelp.com/discussion/comment/1852032#Comment_1852032

    could you elaborate on that? I guess I’m still struggling to see where it says it needs vertical venting. Obviously it says quarter inch per foot of horizontal as it reaches the chimney. But do you have to to reach the chimney?

  • Cwanty_03
    Cwanty_03 Member Posts: 4

    let me double check. I believe I only need one 90° conversion and then from there I could run straight out of the rim board between the floor joist.

  • HVACNUT
    HVACNUT Member Posts: 6,713
    https://forum.heatinghelp.com/discussion/comment/1852173#Comment_1852173

    Yes. The reason only "chimney" is mentioned, leads you to the fact that it's the only correct means of venting. I don’t believe Buderus has a supplement. Otherwise it would have been noted.

    And I still don't understand how removing a brick chimney is easier than fixing a roof leak. Don't get me wrong, I almost committed justifiable homicide trying to find and fix a roof leak. But taking down a chimney?

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