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Conversion burner exhaust pipe has 3/8 inch hole.

tra350 Member Posts: 2
edited February 2017 in Gas Heating
Furnace 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.


    EBEBRATT-Ed Member Posts: 10,374
    It is possibly a test hole for combustion testing the furnace's burners. It is probably under negative draft (sucking air in not blowing it out)

    Check it with a candle, match or cigarette. If it sucking air in don't worry about it. If it blows out seal it up
  • Steamhead
    Steamhead Member Posts: 14,863
    If it blows out, have the chimney checked. It may be partially blocked.
    All Steamed Up, Inc.
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service