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Oil on the boiler room floor
I have a Prestige Triangle Tube boiler, going on 5 years old, feeding into a network of hot water radiators. Southwest Montana. Five years old. So far flawless performance. Until now.
Late today I noticed a large pool of thick clear oil on the boiler room floor. I'm not certain where the oil came from but there is a copper pressure relieve valve on the top of the boiler, feeding into an open-ended copper pipe that points down almost all the way to the floor.
The inside of that pressure overflow relief pipe feels wet with oil. So this must be coming from within the boiler somehow. This does not sound good.
I have not yet been able to reach my plumber. After 5 years I'm not sure he is still in town. Good plumber. But for all I know he moved to Seattle. Or Denver. Or Timbuktu. The phone number I have is not working.
If I cannot reach him tomorrow I'll look for another plumber.
In the meantime what is your best guess (anybody)? How serious is this? How and why does thick heavy oil squirt out through a pressure relief valve?