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Induction Hob again

Former Community Member
Former Community Member
I hope that you don’t find me impudent but I am having difficulty finding an electrician to explain why they will not install the induction hob and double oven that we are looking to fit in our new kitchen.
We have chosen a hob 7.4 kW and oven 6.3 kW. The cooker radial circuit has 6mm2 cable with 40A MCB. The run is some 12 m. The house was built (converted) in 2002 and inspected last year (DPN18C). We cannot run an extra cable because the CU is separated from the kitchen without a horizontal floor or roof space and presumably runs the existing cable through the stud walls.
The kitchen fitting company electrician has visited but won’t carry out the work unless we sign an indemnity as it would invalidate our insurance and the appliance guarantee. He suggested instead two plug-in ovens which we could add to the ring main. I have contacted four other local electricians but they all use 13.7 kW means 59.7 A which means 10 mm cable and ignore my request to consider diversity.
Should I give up and accept the two oven solution or perhaps a gas oven?
Do you know of a way of finding someone who understands diversity?
Am I simply wrong?

Parents
  • Am I simply wrong?

    I don't think so either. 30% after the first 10A (plus 5A if there's a socket in the cooker control unit) is a well known rule going back generations. Provided the manufacturers instructions don't say otherwise I too reckon a 25A or higher common circuit should be fine.

       - Andy.
Reply
  • Am I simply wrong?

    I don't think so either. 30% after the first 10A (plus 5A if there's a socket in the cooker control unit) is a well known rule going back generations. Provided the manufacturers instructions don't say otherwise I too reckon a 25A or higher common circuit should be fine.

       - Andy.
Children
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