scorching on boiler

Old 12-09-10, 12:28 PM
palmcoast's Avatar
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Join Date: Dec 2006
Location: New Jersey
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scorching on boiler

Any idea what would cause burn marks and scorching on the outside of my oil fired boiler on the front side where the burner is mounted?
Old 12-09-10, 03:05 PM
Join Date: Mar 2006
Location: Wet side of Washington state.
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Air leakage. Plugged gas passages is another. Some pictures of the boiler and scorching might be helpful. When was it last serviced by a professional?

To post pictures you need to first upload the pictures to a photo hosting site such as or and then post the public URLs for the pictures (or album) here. More pictures are always better than fewer. Please have CLEAR pictures and have both close up pictures and ones from a far enough distance that we can see how the various parts are interconnected.

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