Electric Instantaneous Water Heater For Bath

I have looked in the past for this beast with no luck. A customer   this week  said he had found one online, but lost it . I need one for a 1 bed flat, it will feed a bath tub, shower & 2 sinks.

Any one got a link as i can not find  one &  from past experience they don't exist as you cant get the flow  to heat a bath,  fill the bath slowly then it will be cold by the time its full. As its a 1 bed flat i dont have a problem (well, not bothered)  that a sink tap may be opened  whilst the bath/shower is on.  There's not any room for a cylinder & i have told my client not to hold his breath, Over to you !

What about the 10KW jobbies would one of those work actually probably not as even a 10.5 KW shower to me has poor flow.

Show me a link please that says it can be used for a bath tub ?  Its that sort of power i was expecting

The redring one says not suitable for baths but customers say they have used it to fill them.

http://www.fastlec.co.uk/blog/?p=3

Interesting, i have used that Redring one in a shop before. 

As i have not had a bath for at least 10 years :Blushing    can anyone tell me how long it takes to fill one (hot)  via a standard/combi gas boiler ?

I think the customer would be very disappointed with any instant water heater for a bath.

the highest  have seen is 10.5Kw.  Now just think how long it would take to fill a bath using a 10.5Kw shower.  Same time for an instant water heater.

I even moan about the time it takes to run a bath with a 20Kw combi boiler and think that is a poor solution.

imho the only way to fill a bath is from a hot water tank, then you are only limited by the water pressure and how quick it can fill the bath. 

You can get 12Kw Electric Boilers, but then you need cylinder and all that.

I  have tried talking the customer out of this,  back at planning and again now the job has started, but he is adamant it what he wants. Its for a rental property, not one he will live in himself

And he might find his tenants don't stay long, or keep complaining how long it takes to fill a bath.

At least he's also giving them a shower so hopefully that will work better.

I suggested not to fit a tub at all, the space then could be used for a cylinder, but then you wouldn't need one as its an electric shower  

Is it true that a 12kw instant water heater is the biggest that can be installed in the UK ?  I see that there are 24kw and 27kw models available on ebay from the US, but not sure if these can be installed in the UK?  Anyone have any experience/advice on using the Ecosmart 24kw in the UK?

24kw is over 104 amps not much domestic or single phase stuff is designed to withstand over 100a for long periods.

24kw @ 110v is 240amps (ish) so they must use their split phase stuff. Still it seems an awful lot of electricity just to heat water.

Strange this thread cropped up now, the flat has only just  been finished and the tenant moving in tomorrow. In the end he did listen to me & fitted a shower, not tub and a conventional cylinder with a 3kw immersion that feeds that and 2 sinks.