The first hot billet was heated at Mäkelä in Finland. The newly developed inline EHKO (electrically resistance heated high convection oven) plays a key role in Mäkelä's decarbonization plans. The concept combines two electric heating methods. The decisive factor is the extremely high overall efficiency of the system, which is achieved by base heating with heating elements and final taper heating with induction. As the new equipment will be replacing an old gas heater, Mäkelä will save 960 tons of CO2 per year.