Following recent helpful advice on this group on destroying my house I come
to you bearing another question...

If, as part of a house rewire the electrician was asked to put in a feed for
a shower, what size cable and capacity MCB would you reasonably expect?
Cable run is about 15m

What do folk reckon the average/minimum rated shower would be?

What size shower could be run from 6mm cable?
What size shower could be run from a 32A MCB on aformentioned 6mm?

I think you can see where this is going!

Thanks for any advice,
Peter