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Conversion burner exhaust pipe has 3/8 inch hole.

Gas Conversion burner 6 inch galvanized exhaust pipe has almost 3/8 inch hole poked in it for 40 years.
We're not dead yet. What is the best way to easily fix this?
3/8 inch bolt won't fit but 1/4 inch bolt is loose. I could use that and some metal epoxy.
Unless this is supposed to be there for some type of temperature probe - I'm making this up.


  • lchmb
    lchmb Member Posts: 2,997
    Do you by chance have a double swing barometric damper on this unit? Or how about a picture of the vent pipe?
  • Jamie Hall
    Jamie Hall Member Posts: 17,011
    May I make a guess? Somebody used it for a probe for combustion calibration and didn't close it up...
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England