What caused this splatter?

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Mark2974
Mark2974 Posts: 1
in Oil Heating
IMG_9960.jpeg

A neighbor had this happen to a new oil boiler installation. It looks like rain water entered the flue pipe from an uncapped chimney. Could the water cause this splatter? Looks like some heat damage near the flue pipe. The boiler is operating normally now. The “splatter” is from the original event and not yet cleaned.

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  • Jamie Hall
    Jamie Hall Posts: 27,975

    yes

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

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