New to the sight and behave been doing some research but thought I might get some info by asking what I am sure is a stupid question. I have a burnham independence NG steam boiler, model number PIN4SNS-ME2, from the paperwork that came with house when we bought last year, it was installed in 2012. Last year when we moved in I had a heating company come take a look at everything, no banging, worked well, he said everything looked fine, installed well, piping done correctly, if anything he suggested possibly new adjustable vents for upstairs radiators but that was it. That was this past march (2014.) This season I have been increasingly having to add water to system, with electronic low water cutoff off coming on several times. There are no visable leaks, no puddles by radiators, unit or pipes that I can see, however, banging has increased significantly at one section of pipe. I had same heating contractor come out, explained everything, he opened water supply valve for what seemed like two mins, water leaked all over the floor and he told me boiler was cracked.
-is he correct?
-am I damaging anything more(piping) by continuing to add water and use boiler until I can fix problem?
-is it possable to replace parts of boiler(actual boiler) or does entire unit need to be replaced?
-I live in Boston, he quoted me anywhere from 5-7k to replace, does that sound correct?
-if I do have to replace I was thinking same unit for ease of swapping out, or is burnham indepence not a quality unit ( especially since I though they should last for closer to 20-25 years.
Thank you very much for the help!!