Rehashing the old Williamson vs Weil McLain comparison, and new boiler specs

and in the end

was going to take the 3" up to the elbow but couldn't get the long nipple. it's funny they got crimping solutions for bigger pipe but not threading. . .

so i have skimmed a couple times but haven't run TSP first. compared to the old boiler and piping it has a much more stable water line but not perfectly steady. about 3/8 to 1/2" fluctuation while running. And you can actually track the fluctuations watching the steam guage. it varies about 1/8 or 1/4 of a PSI and then relieves. it is well equalized so i'm having a little trouble figuring what the water level would fluctuate with pressure like that but i haven't linked the phenomenon with high precision and maybe it isn;t the varying pressure that is causing the water level instability.

It isn't carrying a lot of water, no knox, steam circulating to all rads within about 15 mins from cold start. couple are slower. i hadn't balanced the system before so I have a little work to do there.