On Jun 21, 8:30*pm, "Roger Mills" wrote:
I've just spent a few days in a holiday let in Cornwall, where the heating
and hot water was provided by an elderly-ish boiler which was unfamiliar to
me. Since one of the days was wet, and there was little point in going out,
I decided to investigate and take a few pictures - as one does(!)


You need to get out more - even if it is raining.