Hello,

I am thinking of installing an electric shower as a back-up to the
combi boiler. I have talked about this before but not got round to it!

Can anyone tell me what are the rules regarding shower isolator
switches? I could not see anything in the OSG; where should I have
been looking?

From my experience, electric showers always seem to have pull cord
isolators in the bathroom. Is there a reason for this? I am wondering
why I don't see wall switches, like the ones used for ovens, on the
walls outside bathrooms?

I am thinking about high current electric showers but whilst we are
talking about it, how do the rules differ (if at all) for other types
of shower. I am thinking that pumped showers come in two types:
showers with an integral pump or ones where the pump is separate. I
presume these are often isolated by a switched FCU in the airing
cupboard or somewhere discrete, not in the bathroom?

Thanks,
Stephen.