Peter 631 plumbing
New Member
My boiler is very old about 25 years, and I haven't many issues with it until lately. It has a tank-less coil and the mixing valve is shut completely for the highest temperature. When someone takes a shower the hot water is there but limited. This happens even when no one else in the home is using the hot water. I was thinking it was a dirty coil, so I shocked it a few times by opening and closing the the supply to the coil while having a faucet open. It works a little bit better now. Anything else I can do? For those following my threads this is my second home without Hydromx installed. (yet) Thank you