I got home from the supermarket to find two big holes in the kitchen ceiling, and Mick mopping up a load of hot water and plaster dust! He's suspected ever since the heating first started playing up that we had a leak in the system somewhere, snd this was confirmed when hot water started gushing through the ceiling
I've had to mop the kitchen floor a couple of times, to get rid of the plaster dust, but it's finally all gone
On the plus side, at least now it's been "found" and he's fixed it, so once we get the new boiler in on the 5th that *should* be it!