nightjar nightjar@ wrote:
People do not, as
a rule, take prolonged holidays in winter and have their heating turned down
when they do.


Not so. Many retired/self employed/seasonal working people take long
holidays over the winter months. Some like me, turn down the heating to
a reasonable 50F, 10C or lower. Many houses without central heating will
drop to below this temperature overnight. A product which won't run at
temperatures around freezing point is IMO unfit for purpose. I suppose
that this justifies the use of absorption fridges in boats and caravans!

Regards
Capitol