redring shower

Hi
I'm wanting to replace my Redring Plus 9S shower, but I can't find any technical data on it. Is it a 9kw shower, so the cable and fuse etc will be as such? Also, is it ok to replace it with a 9.5kw or should I use an 8.5kw?
Any advice appreciated Many thanks
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.