In article ,
Colin wrote:
At a guess i would say that on their lowest setting, screwed right in,
they turn off at about 14 maybe 15 degrees c. Which i guess i should be
heating the house to about that anyway. I was just a bit confused that
when screwed in, the radiator still functioned, i expected it to turn
off.

Most have a frost setting which is a deal less than 14-15C. This is the
minium. To turn them off fully for temperatures below this, you re-install
the cap that comes with them when new. This turns them off fully
regardless. In theory.

--
*A nest isn't empty until all their stuff is out of the attic

Dave Plowman London SW
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