Decent electric shower?

[RoseValleyRambles]

Hi folks,
Looking for advice on an electric shower. We have a very old one in our second bathroom, which needs replacing. It runs off the mains, not a combi boiler. I'm planning on upgrading to a 10.5kw one, understanding this may need new wiring. The question: does anyone have one? If so, am I likely to get a decent flow of water from it?
Recommended models also appreciated.

[JT05]

We've always installed Mira showers, wide choice and very reliable.

[Fourarmsv2]

Our plumber recommended the Mira multifit range as they can be installed over the top of most existing showers.

www.plumbworld.co.uk/mira-sport-multifit-electric-2121-25750?utm_source=GoogleBase&utm_medium=GB&utm_campaign=GoogleBase&gclid=CJyHzsv4hssCFVIYGwodgwwIeA
9kWh version

www.plumbnation.co.uk/site/mira-jump-multi-fit-10-8kw-white-electric-shower/?gclid=CLjRt9b4hssCFUQcGwodByoEkQ
10.8kWh version

[ontherightpath]

We bought an aqualisa 9.5 kw and its been fantastic. The water flow is much better than a triton we have in another room.

[RoseValleyRambles]

Thanks guys, much appreciated. So looking forward to not having to turn take!