Abstract: A process and a device for closed-loop and open-loop control of the output of a burner, particularly a burner operated with exhaust gas from an internal combustion engine as an oxygen source for the regeneration of a particle filter unit, in which the burner output is controlled as a function of the average pressure of the internal combustion engine and/or the speed of the engine. Additionally, the temperature between the outlet side of the burner and the particle filter unit can also be entered as a closed-loop variable for closed-loop control. In the device, an open-loop and closed-loop output control device is provided, which receives, as inputs, the temperature, detected by a temperature sensor, and, optionally, the average medium pressure detected by an accelerator sensor, and/or the speed of the internal combustion engine detected by a speed sensor. The temperature sensor is placed downstream from the burner in the exhaust gas section.