Cooker socket, can I plug in a 9kw heater

danrv

Risteard said:

danrv said:

BarelySentientAI said:

tacpot12 said:

It's likely that an electrician will be able to change the Cooker Control Unit for a 45A Switch Isolator to allow you to connect a 9kW heater using the existing cable. They will check that the cable is large enough and that the correct circuit breaker has been installed to protect the cable. 

how many times is 10mm cable or larger used in domestic properties?

Just for electric showers these days. I still have the 60 amp circuit and 10mm cable for my old 10kW warm air heater. 
Dedicated circuit certainly needed.

SOME electric showers. Not all will have such a large cable installed. 

Yes. 9.5kW would need 10mm, probably 8.5kW too although I run this size on 6mm.

Risteard

danrv said:

Risteard said:

danrv said:

BarelySentientAI said:

tacpot12 said:

It's likely that an electrician will be able to change the Cooker Control Unit for a 45A Switch Isolator to allow you to connect a 9kW heater using the existing cable. They will check that the cable is large enough and that the correct circuit breaker has been installed to protect the cable. 

how many times is 10mm cable or larger used in domestic properties?

Just for electric showers these days. I still have the 60 amp circuit and 10mm cable for my old 10kW warm air heater. 
Dedicated circuit certainly needed.

SOME electric showers. Not all will have such a large cable installed. 

Yes. 9.5kW would need 10mm, probably 8.5kW too although I run this size on 6mm.

8.5kW will in almost all usual circumstances be fine on 6mm^2. In fact my 8.5kW shower is installed on an existing 6mm^2 cable.