The immersion heater circuit in the airing cupboard of our house has at some
point had a conventional dual-gang 13A socket spurred off it (used for a
shower pump currently). I don't believe we have ever used the immersion
heater so I haven't done anything about it until now (i'd wish to keep it
though in case the c/h ever packed in). The circuit is fused at 20A and
appears to be 2.5mm sq conductor cable.
I'm contemplating two things:
1. Putting my tumble dryer in the airing cupboard too - where the combined
loading may well exceed 20A if anyone did happen to flip the immersion
heater switch while the tumbler is running.
2. Having under-tile heating installed in the en-suite loo next door when
the floor is re-tiled (it's a small room so not talking huge wattage).
It would seem pragmatic (and less costly for me!) for whoever I get to do
the floor heating to continue to make use of the immersion heater circuit
given how convenient it is, but is there a proper/acceptable way of doing
this in regs?
I was thinking it *ought*
to be acceptable to have a single-gang change-over
switch (if there is such a thing - I've never seen one!). One way switches
to the immersion heater's switched outlet, and the other way to the 13A
socket and an RCD protected outlet for the floor heating).