Gas fired infrared burner with auxiliary flame arrangement

A heating arrangement, comprising:

• a burner box;
• at least one gas fired infrared burner positioned within the burner box, the infrared burner including:
• a burner body including a primary inlet for gaseous fuel and air and an auxiliary inlet for gaseous fuel and air, wherein the primary inlet feeds to a primary chamber of the burner body and the auxiliary inlet feeds to an auxiliary chamber of the burner body;
• an emitter arrangement mounted on the burner body and through which mixed gaseous fuel and air flow in a manner to be combusted at an external surface of the emitter arrangement, wherein the emitter arrangement includes a primary combustion surface area fluidly connected to receive gaseous fuel and air from the primary chamber and an auxiliary combustion surface area fluidly connected to receive gaseous fuel and air from the auxiliary chamber, wherein both the primary combustion surface area and the auxiliary combustion surface area are formed by a common emitter plate that extends over both the primary chamber, the auxiliary chamber and an internal wall dividing the primary chamber from the auxiliary chamber, wherein the primary chamber and the auxiliary chamber are sealed from each other by the internal wall and a top side of the internal wall terminates at an underside of the emitter arrangement.

A method of operating a gas fired infrared burner including a burner body and an emitter arrangement, the method comprising:

• providing a primary gaseous fuel path into a primary chamber of the burner body and then through multiple pores or openings to a primary combustion surface of the emitter arrangement;
• providing an auxiliary gaseous fuel path into an auxiliary chamber of the burner body and then through multiple pores or openings to an auxiliary combustion surface of the emitter arrangement;
• flowing gaseous fuel along the auxiliary gaseous fuel path and combusting the gaseous fuel at the auxiliary combustion surface with resulting flame grounded at the auxiliary combustion surface;
• flowing gaseous fuel along the primary gaseous fuel path to the primary combustion surface;
• and
• utilizing flame from combustion at the auxiliary combustion surface as a pilot to ignite gaseous fuel emitted at the primary combustion surface;
• wherein the primary chamber and the auxiliary chamber are sealed from each other by a wall within the burner body and a top side of the wall terminates at an underside of the emitter arrangement.