"Owain" wrote in message
...
dave smith wrote:
Can anyone tell me before I buy one) if it is ok to fit a small loovent
extract fan

Ask the wife first.

and wire it from the lighting circuit

Yes. You will need a double-pole (or if it is the sort of fan with a
run-on timer, triple-pole) isolator which must be either within sight of
the fan or lockable-off, for maintenance. You can get "fan isolator
switch" in the DIY sheds or online.

or do I have to wire it from the ring main?

No, but if you did it would have to be wired through a fused connection
unit with a 3A fuse.

If in a bathroom or shower room, Part Pee of the Building Regs will
apply in England and Wales.

Owain

Thanks Owain.