My head feels as clear as a mountain lake. Almost.
I discovered that the hot water tank was leaking badly the night before I flew to Geneva. Today the plumber came round. It's gonna cost a couple of hundred quid to replace. As the whole heating system is about 25 years old, it's only a matter of time before the boiler goes so I think I may as well bite the bullet and get a new condenser boiler and be done with it.
