I have to put an extractor in the utility room in the renovation. All the others (bathroom, en-suite etc.) will run off the lighting circuits and come on when the light switches on. I don't particularly want to do that with the utility as will not be needed every time the light comes on and may be needed when the light is off.
What is the best way to power this fan, via the lighting circuit with a pull cord (not preferable) or switch, or via a spur from the ring main?
Cheers
Martin