We just purchased our new home, and having some water issues, we learned our dunkirk boiler is 22 years old!!!. Its still working strong but was suggested that maybe we should look at updating because of the age and we have hard water and the boiler water inlet was never connected through a soft water line, so years of hard water going through the boiler.
I plan on purchasing another dunkirk boiler. I have heard from other after seeing this in our house they are good boilers and learning its 22 years old says alot!