Against the background of rising energy prices and the recent allocation of CO₂ emission certificates for the period 2008–2012, increasing energy efficiency and decreasing CO₂ emissions have become more and more important. RHI supports these targets by providing a diverse range of solutions including high-quality refractory linings, optimum lining maintenance, and process improvements. In this paper the contributions of intelligent refractory solutions to increase energy efficiency and decrease CO₂ emissions during steel making are demonstrated with multiple examples.