Gas burner and domestic appliance

A gas burner, particularly a domestic gas burner, more particularly a domestic gas burner for a cooking device, comprising a burner housing with a burner chamber which comprises one or more flame ports where a gas flame can be ignited, and comprising an inlet device with a gas intake which is configured to let in a gas flow of a gaseous fuel and with an outlet where a fuel/air mixture can be received, wherein the gas intake and the outlet of the inlet device are in open communication with each other via a fuel channel bounded by a channel wall, wherein the burner chamber can be coupled via the inlet device to an optionally controlled gas feed, and wherein the inlet device comprises at least one air inlet which allows free entry of ambient air to the gas flow, wherein the inlet device comprises at least one auxiliary gas port which opens into or toward a wall of the fuel channel of the inlet device in or close to a path of the ambient air, wherein a Coanda surface is provided adjacently of the at least one auxiliary gas port, wherein the at least one auxiliary gas port is coupled to auxiliary gas means which are able and configured to generate and maintain together with the gas flow a forced auxiliary gas flow, and wherein the at least one auxiliary gas port feeds the auxiliary gas flow via said Coanda surface over the wall of the fuel channel of the inlet device.