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New steam boiler install and lots of problems
Hello! I recently had a new slant fin gas steam heat boiler installed in a 2 family. It heats the second floor apartment. The prior boiler failed after 15 years - we don’t know why. We had zero issues w it prior to it failing - just had trouble starting it up last year and had it serviced, and this year, it totally broke and we were advised to replace it by three different companies/ plumbers. We also replaced the auto feeder and most of the valves on the radiators. The plumber guaranteed his labor for 2 years and is working w us to resolve whatever is causing issues but at this point - I think we are all open to ideas.
After install, the the tenant noted that some of the radiators weren’t heating ip right, with two radiators connected to the same pipe slowest to heat/ often cold. At the same time, several other radiators were spewing black water out of the valves etc. Plumber came back and adjusted some things (blamed it on the auto feeder having the wrong setting by accident), changed valves etc. All was well for a week. Tenant called again and no spitting but also no heat in the same two radiators - other radiators cranking. Water level on boiler was to the top. Plumber decides to replace auto feeder bed no one knows how old it is etc. He gets heat out of all the radiators. Fast forward another week or so and tenant calls and says no heat out of same two radiators. I go over and water level to top. Plumber has me drain the system and he comes next day and replaces a main valve, adjusts some settings, etc. Says tons of sediment In the system. Skims it - he did this once before already - and tells me there’s no vents on the main line, and he’s going to add two. And says the system needs to be skimmed a couple more times etc.
Tenant said heat was working well yesterday w all radiators heating up. This AM, same two radiators were cold. She cranked the heat and they eventually got warm.
I honestly don’t know much at all about steam heat. Plumber seems experienced but is not an old timer w TONS of wisdom; he does a lot of installs and repairs in Boston on steam heaters. He is, however, doing most of the labor for free at this point, but wants to charge now for the piping issues w the main vents etc.
Thoughts? I posted some photos.