What size electric shower

Hello all,

I have a question that I hope someone will give me an answer to

At the moment I have a paltry 8.5kw electric shower and flow is really poor. I have a 10mm cable going to the shower, what is the maximum kw shower I can have installed?

Thanks

teaselweasel said:

Hello all,

I have a question that I hope someone will give me an answer to

At the moment I have a paltry 8.5kw electric shower and flow is really poor. I have a 10mm cable going to the shower, what is the maximum kw shower I can have installed?

Thanks

Click to expand...

To answer that we need more info:

1) What is the length of the cable run
2) how/where is the cable installed. In particular, is it in loft/wall insulation, in conduit, grouped with other cables etc?
3) What is the rating of the MCB/Fuse that feeds the circuit
4) What type of consumer unit do you have and what other circuits is it supplying - a picture showing the layout of the MCB's/fuses would help here.

That'll do for a start,

Apart from the electrical questions above, you have to ask yourself why you have a poor flow rate.

What is the flow rate at your cold mains tap? What is the working pressure of the cold supply to the shower?

The more powerful the shower you have the greater flow/pressure will be needed to let it work properly, otherwise it will just cut off on the low pressure sensor.