In message , Bob Eager
writes
On Sat, 09 Jun 2018 12:22:21 +0100, Graeme wrote:

Not impossible, but the whole wall is tiled (no cupboards), and I don't
really want to try cutting a hole for a socket, in existing tiles.

If the loading isn't more than 2 amps, how about a clock connector?
Minimal front projection, so you could perhaps use a shallow surface box.
It's fused, too.

Now that is a good idea, and may just about be doable. I'll check the
total wattage tomorrow. Haven't seen one of those for a few years.
Parents had one over the mantle piece in house built 1953.
--
Graeme