Would New Wiring Be Required?

Hi,

I enjoy the posts and advice and now I need some too!

I am replacing an existing all electric wall oven (220V) with a dual fuel oven (also 220v for the oven part). Currently, there is #10 four wire service to the existing wall oven connected to 50 amp breakers. The KW rating for the old wall oven is 27 KW. The new oven will require 6 KW. The existing wiring must be at least 15 years old. Assuming the existing wiring can reach the new stove position, would there be a problem re-using it so I don't have to run new wiring (slab construction, difficult attic runs for the wiring)? I think the wiring was undersized for that load and its distance from the main panel (pretty typical for this house and Texas), but that size wire should be adequate for the new stove. Would I not also need to replace the breakers with 30 amp?

Finally, the wiring will be direct connected to a plate on the back of the stove. Is there any requirement for how the wiring gets to the stove connection or can it just come out through the wall?

THanks for your help.

 

As far as the 4 wire #10 that would be adequate provided you changed the circuit breaker to a 2 pole 30 amp. This is provided the wire is copper. I am a little concerned that this wire was protected by a 50 amp circuit breaker. You should make sure you don't have any other wires being overprotected as this can present a dangerous situation.
As for the connection unless it is a built in wall oven you should install a 4 wire 30 amp 220V receptacle to the wire and a cord to the stove.