Part P of Schedule 1 to the Building Regulations which was introduced in February 2005 and states that information of this nature can only be given by a qualified electrician, certified competent for undertaking installation work.
As such a Part P registered electrician will need to visit the site and investigate the matter as the electrical installation must comply with British Standard 7671 as we are unable to confirm the required cable size for any of the electric showers we sell.
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