Abstract: A burner with an integrated electrical high-voltage igniter and a flame monitor for partly oxidizing gaseous fuels in reactors that are either pressurized or not. A fuel-gas channel communicates with a confusor which opens into an annual fuel-gas nozzle. The fuel-gas channel, furthermore, is surrounded by an annular oxygen channel. Water channels border the confusor and the annular fuel-gas nozzle. The annular fuel-gas nozzle, moreover, has the confusor, and annular nozzle with a reaction zone end, and a diffusor. This diffusor merges into the oxygen channel at an axially parallel radius of curvature. A high-voltage ignition cable extends through the fuel-gas channel and terminates in a metal electrode which is positioned so as to form a spark gap in a space between the tip of the electrode and a metal wall of the burner.