I was wondering if I could get some opinions on the best way to move forward with a re-pipe. Currently we are pumping into the expansion tank and experiencing some odd issues at upstairs radiators and collecting air - especially ones near the end of the lines. After reading Dan's book, I think some of this is likely attributed to pumping into the expansion tank.
Based on what I read, it seems I have two viable options for re-piping. I am trying to address this in the simplest way possible. Attached is a picture of the existing setup and then two options I sketched out.Option A:
I think this would move to a primary-secondary arrangement. While I'd save costs on piping, I'd have to spend money (and electricity) on a second circulator. This option is appealing as all radiators will get the full power of the circulator, regardless of what the ESBE is doing.Option B:
I think this switches the existing setup to "Pumping Away" but the ESBE would still throttle the entire system for awhile?
Does anyone have any thoughts or suggestions on the preferred way to repipe? It is going to cost a few bucks to do, so I'd like to try and get it done and done right.