Electric oven info wanted

I’ve got the very same oven. Got a heavy duty hella plug (20 amp moonraker) So far no problems running off the hella in the scanny.
A mate had no end of aggro in his MAN though (blown fuses/melted plugs etc)

See if you can get you friendly fitter ti wire a standard 3 pin plug to the 24v supply and run it off that.