<p>The burner (107) has a lance arranged in a middle of a cylindrical housing (12) and including a fuel channel (16), which is supported at the housing above swirl blades (17). A support (13) is arranged at a side leading towards a burner chamber. A fuel nozzle i.e. full jet nozzle (1), is arranged in the support upstream to the swirl blades. The fuel nozzle is connected with the fuel channel. A ratio of a length and a diameter of the full jet nozzle is 1.5. The support includes a cylindrical part and a conical part with a cone angle of 10 degrees to 20 degrees.</p>
