Radiating burner having enhanced performance and method for improving the performance of a radiating burner

A radiating burner designed to be supplied during operation with a flow (F) comprising a mixture of air and combustible gas, this burner comprising a body delimiting a combustion chamber and provided with an inlet for the mixture, a porous wicking agent closing off the chamber in a non sealing manner and arranged downstream of the inlet in the direction of flow (F) of the mixture, and a metallic distribution grid arranged between the inlet of the mixture and the wicking agent, characterized in that the body is made from a dielectric material, in that the burner further comprises an electric generator, first and second electrodes, and first and second galvanic connections, in that the electric generator is designed to provide, during operation, between the first and second terminals, a voltage exhibiting a continuous component at least equal to 5 kV, in that the first electrode is arranged on the distribution grid, in that the second electrode is arranged on the wicking agent and in that the first and second galvanic connections respectively connect the first and second electrodes to the first and second terminals of the generator.