In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
6 year old WM ultra 2 boiler and ultra plus 40 indirect. I lowered my temp setting for two week vacation, came back, turned it back up to EXACT same setting, somewhere around half way. I did start to notice water temp seemed a little hotter based on my usual shower valve position. Came home yesterday to system shut down and water leaking from boiler return as well as vents. Any thoughts?