Thanks folks - it was just a thought but it would appear from Rogers link that whilst not banned it is not recommended, even though it would be within 2 metres of the cooker. I must admit I'm not sure why a switch is needed as with the electric ignition for the gas hob and the electronic clock it will never be turned off unless it needs servicing in which case I would isolate it at the CU where it will be on its own breaker. Still better safe than sorry.
Steve - With both ovens and the electric grill on we will be looking at 7.56 Kw. :shock:
This is one of those little jobs that is suffering from mission creep...... We started off looking for a direct replacement for our 600 wide gas cooker which would have just slotted into the hole. We now have a 1000 wide dual fuel cooker which needs cupboards removing, gas point moving, worktops cutting down, electrics installing. cooker hood moving and now from the look of it splashback re-tiling where the electrics are going. All because she found a "bargain". (Oh, and the bargain was a bargain because it needed some new glass.... Which turned into four new doors, a new top panel for the hob and a new burner assembly (hammer) )