New homeowner, one pipe steam heat in single family home, recent oil-to-gas conversion and still trying to figure everything out. Boiler is 2 years old, and survived 1-1/2 winters of pipe banging and problem solving.
It started off as a nightmare, the pipe banging, water hammer, burning oil smell, problem radiator vents, etc. but with the help of what I learned from this forum I managed to bring things to a more tolerable state. Unfortunately I don’t have enough room to install a skim port on the boiler as it is close to a wall, so I have simply flushed it many times and let the auto feeder refill, and is much better than before.
Last winter, I realized that I have TWO pressuretrols. Is this correct??
I tried to dial down the settings to the recommended 1psi that I often see mentioned here on the Wall. However in doing so, the heat would not fire on. The guy that helped with the final stages of the conversion came back and scolded me for messing with the settings, saying that the pressure needs to be higher. (He’s a commercial plumber so perhaps this is true for the apartment buildings he typically services?) He reset it and the system has been just okay, not great, but I think we can do better. I still believe that the pressure is set too high.
How, and what setting, do I properly adjust each pressuretrol? Is it correct to have both of these, or should one actually be a Vaporstat (they look similar!) I am afraid to mess things up again and not be able to start up the boiler again. I just read about cleaning out the pigtail today, so maybe this was the reason lower pressure didn’t work on my previous attempt?
Additionally, I do not have any main vents, but I will start another discussion for this. I would like to know where and how to install these myself, in my finished basement where the majority of pipes and elbows are hidden in the ceiling. Most of the main is exposed except for the ends and returns.