Thanks for your speedy response.
The CU doesn't look so old but the house is. We only bought it a couple of years ago. The CU is a Square D - not sure if this is the model number but it has BS 5486 Pt 13/12 on the front of it.
sguare d qoe
you can still get
The black ones are maybe 20 years old
The design has changed a few times
but the new ones fit
We get ours at w/f
Up to 40 amp I think you can get
bs 4293 30ma for some of the black ones,
There may have also been other versions.
The label is visible on the front of the device ONLY when the CU cover is safely removed
Thanks for the replies you guys.
You have lost me somewhat though
Think I might get the electrician to join the forum, think he talks the same language as you lot
Just ask him to try wholesale/fittings or similar.
It looks like you have a 100 amp main switch , this will be written on the biggest black switch to the left ,you have spare ways also.
Get a 40 amp rcbo to fit the square D QOE board, this will fit your consumer unit, and let him work out the size of the shower you can then have.
You will be able to have more than 7 kw and maybe upto a 9kw even
PS
The tails to your meter LOOK like they may need uprating for the extra load of your shower
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