So far, so good.
The boiler guy came again this morning to hopefully get it working and allow me to not feel like an icicle in the morning. He worked on it for an hour and got the heating back, then he explained that the thermostat wouldn’t be any use so I’d have to turn the heating on and off during the day. Oh well, better than not working at all, he said he should have the replacement part in a couple of days so the faffing about would only be for a day or two, no big deal. Anyway he left so I got on with getting my supplements for the day when all of a sudden he comes back. At first I was shocked when the front door opened and he came back in announcing he’d luckily seen one of his co-workers who just happened to have the part I need. So he came back and fitted it so now it appears to be working normally again, so far, so good.