What sort of electric water heater do I need?

[tharding]

Hi
I want to get rid of an immersion heater, as it's too big, and install a smaller electric water heater, to service a kitchen sink, washbasin and washing machine (Zanussi Nexus). Can anyone tell me what sort of heater I should get, and what capacity? I only have limited space, and I'm not sure whether to go for an instant inline heater or one with some storage capability.

 

[ChrisR]

Forget the WM it'll heat its own water. For a basin OR a sink, you could hide an unvented 2- 3kW heater away somewhere, the smallest would do and would run off your ring main.
Instantaneous 3kW heaters are one of my pet hates - inadequate, scale up, drop to bits...

 

[chrishutt]

10 or 15 litre unvented heater, providing you run the PRV discharge pipe to outside. These will fit under sink in cupboard and do not require new heavy current electrical circuit.

 

[tharding]

Thanks guys! Sorry for the delay in responding to your prompt replies - problems with my internet connection (now resolved). Have a good Christmas!