I know, not exactly fun on a Friday night!
So, my builder reckons you have to have one that comes on with the light ? really annoying in the middle of the night but my pil have been told they don't have to have one at all as they have an opening window (as do we).
I'm quite happy to have one but want it controlled independently (which is how we have it at the moment) so that we can just put it on when showering.
Does anyone know what the regulations are because I've googled and can not seem to find the answer!