replacing my 7.2kw shower

[simonwarr]

hi could anyone help i have currently got a 7.2 kw shower running from a 30 amp power supply
i need to replace it but would like to upgrade it to a higher kw unit but the largest fused supply i have is 30 amp
is there any way of doing this without having to upgrade my consumer unit

 

[JerryD]

If your cu is 'full' you will need a dedicated cu and rcd for the shower. Take supply from existing meter tails using a Henly and same size tails.

If you're fitting a higher wattage shower it's not only the fuse/mcb that needs upgrading, the cable may need replacing too. You may need a 10mm cable (whereas you may only have 6mm cable at present). Cable size is determined by many factors - design current, length of run, environment it runs in, grouping, etc.

 

[ban-all-sheds]

And even if the CU is not full, you may also be limited by what is available for it, and what is the largest it can safely support.