For industrial furnaces and firing systems in the iron and steel industries in the precious, non-ferrous and light metal sector, as well as in the plastics, fibre and paper industries. Other fields of application are thermal incineration installations, as well as driers and hot air generators. The burners are used in combination with a burner quarl made from refractory concrete. Different flame shapes can be achieved by using burner quarls with different geometries. The burner may be adapted to the system requirements using different burner lengths. A high temperature version of the burner is available for high temperature applications (e.g. forging furnaces). For low temperature applications (e.g. for radiant tube heating or hot air generation), the burners are equipped with a heat-resistant steel attachment tube.