The maximum load that a 13 amp plug in hobwillsupportis c.3000 watts, barely more than one large ring on, as example, a Zanussi hob. Gas is faster to heat and far easier to control.If you don't have gas then induction is the way ahead but again they reallyneed hard wiring back to the consumer unit and their own dedicated RCD/fuse.
N V Brooks ● 339d