About mid-autumn, I woke up to a house that felt more like a refrigerator than a home. My combi-boiler had gone out overnight — a familiar issue when you live in Wisconsin and your city water is harder than a rock. Thankfully, it wasn’t one of those negative 20-degree mornings we can have in the winter, but it was cold enough to make me want a quick fix.
I called our local plumber, who’s become somewhat of a regular thanks to this finicky boiler. As usual, he showed up that same afternoon and diagnosed the issue: the mixing valve had stuck













