That's not a problem, is it? Sanity check really... Not sure how ferro-magnetic the steel is (did not have a magnet to hand).
The steel is covering the wall about 30-40mm behind the back edge of the hob. Nothing mentioned in the hob manual.
Just wondered about parasitic heating from stray fields?
My theorising says "probably not" as the field is only present when a suitably heavy ferrous pan is in place and the field should be mostly contained by the iron in the pan.
I presume it is possible to get accidental heating under some conditions
- eg placing a cast iron trivit too close to a cooking area.