In message , Harry Bloomfield
writes
Dave Plowman (News) wrote :
Since cooker hoods tend to be high up on a wall, I usually wire them to
the lighting circuit which is closer. You can still fit an isolating
switch etc if needed.

If the chimney/ cover goes as high as the ceiling, then you could drop
a feed down inside the cover, with an isolation switch just to the side
of the cover.

Not that high, unfortunately - Victorian house with high ceilings.
--
Graeme