I have an oil boiler that goes from my boiler house out the side of my house.
There is a cage around it to protect savings someone from touching it when heating is on. I think this get rid of fumes from boiler.
There is a brown or rust stains then, going from this from where it comes out of the wall to the ground.
Only painted the house two weeks ago and put on the heating and I am starting to see the starts of the brown staining again.
Why is this happing and how can it be resolved.
Paul

Hi Paul and welcome to The Plumbing Page at AskMeHelpDesk.com

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There is a brown or rust stains then, going from this from where it comes out of the wall to the ground.

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Living in Florida I'm, no heating expert but this is a no brainer I take it no pipes are involved so we can rule out a leaky pipe, Correct? That just leaves the metal cage and rain water. Did you paint the cage also? Let me know, Tom