instant water heater

[Robbritten]

Hi, i have been asked to install a 9.5kw instant water heater for a friend. i will be using 10mm cable with either a 40 or 45 amp mcb. do i need to install a fused spur/isolation switch before the heater or is it ok to just connect straight into the heater itself? any help would be greatly appreciated.

cheers

 

[Taylortwocities]

Are you sure you are competent to do this?
You should know that a fused spur can be a max of 13amp so that's out.

Certainly you should have an isolator switch near the appliance.

You'll obviously need to run a new circuit so you'll have to comply with Building Regulations Part P and notify before you start work.

If you dont know then get a qualified & registered spark in to do this.

PS, Is this an under sink or over sink heater? You may need to use special taps if its under sink..