Thinking about the next thing to do with the house. Since it got colder it takes longer to get hot water out of the kitchen tap. I traced the pipes and they are perhaps best described as "interesting". I have a roll of red PEX so have a feeling I'm going to be cutting pipework away before long. Initially at least I'm going to accept the areas I'm working will have no hot water at all. I can live with that, and connect them up again later. It's probably about time I fix it, part of the hot water plumbing is literally supported by a piece of string looped around the knob-and-tube wiring that was live until I started ripping that out, and many of the valves are elderly and don't work very well. One is decayed, presumably because of decades worth of a very slow drip. Another sometimes has a very small patch of water on the floor below it. Nothing is bad enough to warrant urgent attention but if I'm having to deal with one problem I might as well pick up a load of valves from the hardware store and replace the whole lot.
Curiously we have an outside tap on one side of the house and another outside tap on the other side of the house. The second side also has an outside tap inside the breezeway. The curious part is that the breezeway also has a hot tap in it. I'm not sure why you'd want a hot tap in an area like that. I'm debating whether to just leave it there but with an internal valve to turn it off, or look to take it out completely.