A gas burner controller adapter for use in adapting a gas burner control device, which is configured to be connected to a flame ionization electrode and a separate ignition electrode, to operate in a gas burner that only includes a single electrode serving as both the flame ionization electrode and the ignition electrode.

To further reduce the NOx emission, the invention provides a mixing device (10) for a burner (16) having reduced NOx production, comprising a centrally arranged first mixing unit (18) for producing a first fuel-air mixture for a primary flame zone (120), wherein the first mixing unit (8) has at least one first fuel nozzle (38) and a baffle plate (40), a second mixing unit (20) for producing a second fuel-air mixture for a secondary flame zone (122), which encloses the primary flame zone (120), wherein the second mixing unit (20) has multiple second fuel nozzles (70), characterized by a sealing air producing unit (24) for producing a sealing air flow in a sealing air zone, which encloses the primary flame zone (120) of the first mixing unit (18) arranged downstream of the baffle plate (40), wherein the second mixing unit (20) is designed to deliver the second fuel-air mixture into the secondary flame zone (122), which encloses the sealing air zone (126), and wherein the second mixing unit (20) is arranged around the sealing air producing unit (24), and by a third mixing unit (22) which is arranged radially between the sealing air producing unit (24) and the second mixing unit (20) and has a swirl generator (76) and at least one third fuel nozzle (74), which is arranged upstream of the swirl generator (76) in a premixing zone (78), through which a swirled air flow flows to the swirl generator (76), to premix fuel from the third fuel nozzle (74) with the swirled air flow before the swirl generation.

A combustion fluid flow barrier includes an aperture to control combustion fluid flow. The combustion fluid is charged by a charge generator. The combustion fluid flow barrier includes at least one flow control electrode operatively coupled to the aperture and configured to selectively allow, attract, or resist passage of the charged combustion fluid through the aperture, depending on voltage applied to the flow control electrode.

A gas burner assembly and a method of operating the same are provided. The gas burner assembly includes fuel valve for providing a flow of fuel and an air pump for providing a flow of air into a boost fuel chamber prior to combustion. The method includes obtaining a predetermined cold start airflow schedule and modifying the cold start airflow schedule if the operating history of the gas burner assembly indicates that the temperature of the gas burner assembly is elevated, e.g., not cold. Specifically, the warmer the gas burner assembly, the more the airflow is increased relative to the cold start airflow schedule.

A gas burner assembly and a method of operating the same are provided. The gas burner assembly includes fuel valve for providing a flow of fuel and an air pump for providing a flow of air into a boost fuel chamber prior to combustion. The method includes obtaining a predetermined cold start airflow schedule and modifying the cold start airflow schedule if the operating history of the gas burner assembly indicates that the temperature of the gas burner assembly is elevated, e.g., not cold. Specifically, the warmer the gas burner assembly, the more the airflow is increased relative to the cold start airflow schedule.

A gas burner includes a burner body that defines a fuel chamber and a plurality of flame ports. The plurality of flame ports are configured for directing a flow of fuel and air out of the fuel chamber. The plurality of flame ports are distributed along a circumferential direction on the burner body such that the plurality of flame ports are uniformly spaced from a center of the fuel chamber along a radial direction. The plurality of flame ports may be oriented to direct flames away from a void within the plurality of flame ports.

A duel-fuel fireplace apparatus is described. In one example, an apparatus includes an enclosure having a door disposed thereon and a wood burning compartment disposed within the enclosure. The wood burning compartment has an insulated housing configured to support temperatures associated with burning of wood within the wood burning compartment. A gas burning compartment is also disposed within the enclosure and has a gas burner disposed therein. A mechanism including a motor is configured to cause movement between a first mode in which the wood burning compartment is viewable through the door and a second mode in which the gas burning compartment is viewable through the door.

A burner control valve with speed control includes a speed control assembly for metering loading pressure into a loading pressure chamber to prevent pilot light blow out and/or backfire in a downstream burner.

A fuel supply system for a gas burner assembly includes a fuel supply, a forced air supply, and an injection assembly positioned proximate the gas burner assembly for providing a flow of combustion air and fuel through an inlet into a fuel chamber. A pressure controlled valve is operably coupled with the fuel supply and the forced air supply, the pressure controlled valve being configured for stopping the flow of fuel when a pressure of the flow of combustion air drops below a predetermined pressure, potentially indicating a malfunction or failure of the forced air supply.

A tip valve and a cook system incorporating same that automatically stops the flow of gas to a burner when tipped over and that automatically resets when disconnected from the fuel canister to allow the flow of gas to resume when righted and reconnected are provided. The tip valve includes a ball bearing freely moveable between a fuel canister actuator pin and a tip seal within a bore having two different diameters at each end thereof. The transition between the two diameters forms a taper that may be continuous forming a smooth tapered bore, or discontinuous formed by at least one counter bore. The automatic resetting is provided without the use of a mechanical pin or member.