When I start my oil burner, black smoke comes out the back of the boiler but not out of the flue. The smoke comes out of the lower rear part away from where the flue is connected but it's about an inch from the wall so I can't see exactly where it's coming from. Could corrosion have caused a hole ? Could the flue be blocked?
Hole in boiler?
- Thread starter paulm2005
- Start date
paulm2005 said:
if you cant see it what chance have we got
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