<p>In an electromagnetic induction heater for use in heating a strip by electromagnetic induction between a pair of magnetic-pole elements, a plurality of guide rollers are arranged between the magnetic-pole elements to guide the strip. The strip may be guided on the guide rollers in a staggered manner. Each guide roller may comprise a roll element of a ferromagnetic material. Each end surface of the magnetic-pole elements may be concave so that each end surface surrounds each guide roller with a gap left therebetween. <IMAGE></p>
