Greetings!! I am a complete novice when it comes to steam heating but I have been reading up and trying to understand things. My issue revolves around recently getting a new boiler to replace the old Columbia boiler that was leaking. I bought the house in 2016, so I am new to steam heating. Please bear with me. I bought the "We got Steam" book and am going thru it now but I have immediate concerns that I hope someone can assist me with.
The issue I am having is that it seems to me that the boiler is short cycling ( it comes on and heats for roughly 15-20 minutes, cuts off and then comes back on for like 1 1/2 minutes, cuts off and repeats until the thermostat is satisfied) and not all the radiators are getting heat. The ones not getting heat are all on the same main line (I have two mains). Interestingly, one radiator on the same line is getting heat, its just that the other three are not. The other main seems to be heating all radiators without issue, but is the main line that the main vent is spewing dirty water from for a few seconds during heating cycle. Its not a large amount but from what I understand that should not be happening period. Also the company did not, in my opinion, skim the boiler right or well. The sight glass has build up on the top and bottom that cannot be seen through and the water level will bounce at least an inch, occasionally more. So I am assuming it is dirty and needs a proper skimming.
I made an attempt to get the EDR for my house which came out to roughly 415 with 99,6000 BTU's. 4 radiators If I did the math right. The new boiler is a bit over sized +98. The next closest boiler was the Mega steam 396. It was short by roughly -19. There is no insulation on any of the pipes currently, but I am planing on doing that. Did the company install a boiler that was too big for my heating needs and this is why I am having issues? I won't go into the details too much but I don't have a whole lot of faith in this company any longer and don't know where to turn. I am in the Frederick, MD area and would greatly appreciate any suggestions for a reputable, reliable, and trustworthy company.
I have included some pictures.
The first picture of the pressuretrol is what the company set it too. The second is what I set it to upon doing some reading but quickly found out that using this setting my main vents ( both) spew dirty water like a stream. So I reset the settings initially set by the company and now only get a small amount of spew from the one main vent during the heating cycle. I need help please.