It is about two years old, I think it is off a combi boiler located in a cupboard directly behind the shower. Yes it is a wall mounted unit.
I think it is an 8.5kW code QZE9521 (white & chrome finish - not that this is important)
Thanks, XXXXX XXXXX concerned that a plastic componant may have split or a copper pipe pinholed. I assume isolating the electricity will only turn off the heating element (& save my life) so I can run the cold water to see where the leak is?
Thanks again, looks like an early morning Saturday job to keep the wife happy (that will be a first).