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Buderus plugs

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bignozzle
bignozzle Member Posts: 35
in Oil Heating

Hi, first time installing a Buderus oil fired boiler, G115 3. There is no liner in the firebox, and the instructions don’t mention it at all. Not sure how to proceed.

Thanks

Comments

  • HVACNUT
    HVACNUT Member Posts: 7,172

    There is no refractory in a G115 chamber. Its designed that way. Is it an OEM burner? Meaning the burner flange is welded to the air tube, and insertion depth is factory set for the G115/3?

  • bignozzle
    bignozzle Member Posts: 35

    I’m using an ex1 with 7” tube. Going to set it up as recommended by the Carlin burner tables. The flange is welded to the tube.

  • bignozzle
    bignozzle Member Posts: 35

    Sorry EZ1:)

  • HVACNUT
    HVACNUT Member Posts: 7,172
    https://forum.heatinghelp.com/discussion/comment/1873597#Comment_1873597
    Screenshot_20251122_110818_Samsung Notes.jpg

    Ok, unless my Carlin OEM manual is wrong, they want a 12 inch air tube with a 4 inch insertion. Are you a licensed contractor?

    Big Ed_4
  • Big Ed_4
    Big Ed_4 Member Posts: 3,338

    Best to instal the Buderus OEM burner ,it is already tuned for the boiler .. Besides color matching :)

    There was an error rendering this rich post.

  • BDR529
    BDR529 Member Posts: 369
    edited November 22

    Wrong chart that is for gas. This is oil right?

    Buderus will take burers and size the to fit each individual application.

    Where did you get the EZ1? Hope it came with the boiler.

  • HVACNUT
    HVACNUT Member Posts: 7,172
    https://forum.heatinghelp.com/discussion/comment/1873649#Comment_1873649

    Ohh, that's different. An Emily Litella moment.

    Screenshot_20251122_154641_Samsung Notes.jpg

    Never mind.

  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 11,491
    edited November 23

    The flame retention oil burners flames (Just about every oil burner sold today) generates a hot enough flame so no refractory is necessary to reflect heat back into the oil spray droplets to provide complete combustion. I was learned that when I was just a little oil burner trainee. and there was still "Quiet May®" and "Silent Flo™" and "Oil Waster®" oil burners that required a combustion chamber. Ya'll can run that Carlin EX EZ oil burner without a combustion chamber.

    Hope this helps

    Oops, I forgot about the coyote's favorite oil burner "ACME"

    Edward Young Retired

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

  • bignozzle
    bignozzle Member Posts: 35

    Yes, it is oil. Yes I’m a licensed contractor. I like the Carlin burners, I’ve had good luck with them. Maybe I’ll spray paint it blue:)

    Thanks for all the responses.

  • HydronicMike
    HydronicMike Member Posts: 217
    https://forum.heatinghelp.com/discussion/comment/1873631#Comment_1873631

    He said oil.

    HVACNUT

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