On 11/10/18 11:12 AM, Steven Watkins wrote:
On Sat, 10 Nov 2018 16:05:22 -0000, wrote:

On Saturday, November 10, 2018 at 10:33:19 AM UTC-5, Steven Watkins
wrote:
Why do houses have a switch to turn the shower off, either a cord on
the ceiling or a switch in the hall?

Can you please describe the situation more fully.* Does this switch
turn off
the water, or does it turn off electricity (such as for a light in the
shower compartment)?

Commonplace in the UK.* Circuit from fusebox feeds switch on bathroom
ceiling or in the hall.* This feeds the 8kW (ish) electrically heated
shower.* The switch disconnects the heater in the shower (pointlessly as
the shower has it's own controls).* It would be like turning off your
microwave oven at the wall every time you'd finished cooking.

What we in the US have to understand is the British seem to put a switch
on everything.

My son lives in London, and in his flat (aka apartment) even the regular
wall outlets each have a switch, right in the same housing.

Also most water heaters are electric, and are the on-demand type,
located in the bathroom (aka "the loo")