New oven installation

Fil0083 · 15 Jul 2020

Hello,

I am looking to purchase a new oven.
My current oven is a 13 amp one connected to a socket which is part of the other kitchen sockets circuit.
The oven I would like to buy is a 16 amp oven and I am aware I would not be able to connect it with the existing setup.
However, I have noticed that in the kitchen, which was recently refurbished, there is a spare cooker switch, with a spare cable all connected to a dedicated fuse in the electrical panel.

The spare switch:

The spare cable under the oven:

Control Panel:

Do you think it would be possible to wire a new 16 amp oven to the spare cooker cable and switch?
Is it an easy job and would it be normally covered by the £100 installation fee charged by the online retailers?

Thank you so much for your help!

Filippo

flameport · 15 Jul 2020

It's an easy job for an electrician.

It will NOT be covered by any retailer installation service.

Fil0083 · 15 Jul 2020

flameport said:
It's an easy job for an electrician.

It will NOT be covered by any retailer installation service.

Thank you so much for the fast advice.

Then I guess it would be better to pay only for the delivery of the new appliance and arrange for an electrician to do the connection...
Although I notice that John Lewis has different services for oven installations:

Integrated 13 or 32 amp electric oven - £90

Integrated 16 or 20 amp electric oven - £110

As part of this Service, we'll install a miniature circuit breaker between the cooker switch or connection point and the oven’s cable supply. If there is a 16 or 20 amp circuit already in the property, we'll refund the difference between the two electric oven services, post-installation.

Wouldn't the miniature circuit breaker installation be attached to the spare cable, as the connection point mentioned?

Thanks!

flameport · 15 Jul 2020

Fil0083 said:
Then I guess it would be better to pay only for the delivery of the new appliance and arrange for an electrician to do the connection..

Definitely.

From what's been posted so far, the work will involve installing a connection plate at the end of that grey cable (usually in the wall behind the oven), connecting a piece of flex from that plate to the new oven, and changing that 50A MCB in the consumer unit to a 16A or 20A type.

Not necessary to add another circuit breaker anywhere.

Fil0083 · 15 Jul 2020

flameport said:
Definitely.

From what's been posted so far, the work will involve installing a connection plate at the end of that grey cable (usually in the wall behind the oven), connecting a piece of flex from that plate to the new oven, and changing that 50A MCB in the consumer unit to a 16A or 20A type.

Not necessary to add another circuit breaker anywhere.

I see. Thank you again!

Then the retailers would charge all that money only to basically unplug the old appliance and plug the new one in...

AndyPRK · 15 Jul 2020

do people consider the existing setup complaint ?

B50 on what looks like 6mm ?

EFLImpudence · 15 Jul 2020

We!l, we can't really tell. The same for the hob.

Probably alright.

AndyPRK · 15 Jul 2020

why can't we tell?

Because we don't know if its 6 or 10mm ?

Fil0083 · 15 Jul 2020

I can measure the cable, if you like.

Yes the hob is also connected to a B50 with similar setup...

Fil0083 · 15 Jul 2020

I think it's a 10.
I measure around 17mm the longer cable side.

Is it OK or will I burn down the building?

EFLImpudence · 15 Jul 2020

AndyPRK said:
why can't we tell?
Because we don't know if its 6 or 10mm ?

I was thinking that the cable might run through thermal insulation - when the 50A MCB might be too big.

If not, it's alright as the oven or shower will not overload a 6mm² cable if they are below 47A.

If it is 10mm² then alright apart from insulation derating it.