I currently have a broken redring shower. I think it is a 8kw model as the
model is a "super 8".
I need to replace but the electric cable looks to be only 4mm maximum. I
have read that the electric cable for modern showers (old one is 10 years
old) requires a cable of up to 16mm for 10.5kw showers. Even the 8kw on
sale require a 6 or 10mm cable.
Do I have to replace the cable from the shower direct to the consumer
My neighbour has had a 10.5kw shower fitted by a plumber who used the
As a guide
4.0mm cable 29 amps
6.0mm 38 amps
10mm 52 amps
All depends if it is surface / in walls /. under insulation etc.
Run it back to consumer unit ./ upgrade mcb and shower pull switch.
8.5 takes around 35/36 amps.
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