With the additively manufactured recuperative burner, Kueppers Solutions GmbH has succeeded in creating a new burner unit that enables the energy-saving and low-emission provision of process heat. The burner systems produced using the 3D printing process can use the exhaust gas heat at a higher temperature level than previous systems. This results in a significant increase in efficiency. A 3D-printed gas mixing system also prevents high nitrogen oxide levels in the exhaust gas. The fuel requirement as well as the emission output of industrial thermoprocessing plants can thus be significantly reduced.