A flow control apparatus includes a flow control signal generation device for generating a DC control signal based on an audio signal and at least one proportional valve. The flow control signal generation device includes an audio receiving module, a filter rectifier module, a microprocessor and a proportional valve control signal generation module. The filter rectifier module generates at least one DC audio signal by filtering the audio signal provided by the audio receiving module. The microprocessor generates a plurality of period attenuated values based on the DC audio signal. The proportional valve control signal generation module filters the audio signal, attenuates the signal based on the period attenuated values, and then performs filtering and rectification processing to generate the DC control signal, such that the proportional valve may control the opening ratio of the proportional valve based on the DC control signal.

A flow control apparatus includes a flow control signal generation device for generating a DC control signal based on an audio signal and at least one proportional valve. The flow control signal generation device includes an audio receiving module, a filter rectifier module, a microprocessor and a proportional valve control signal generation module. The filter rectifier module generates at least one DC audio signal by filtering the audio signal provided by the audio receiving module. The microprocessor generates a plurality of period attenuated values based on the DC audio signal. The proportional valve control signal generation module filters the audio signal, attenuates the signal based on the period attenuated values, and then performs filtering and rectification processing to generate the DC control signal, such that the proportional valve may control the opening ratio of the proportional valve based on the DC control signal.

A modular linear fireplace gas burner system having a plurality of interconnectable pipe modules and one or more burner members of varying length, each said pipe module having a pipe segment, spuds, orifice mounting blocks and mounting brackets to retain one of more of the burner members, wherein the distance D(o) between adjacent spuds on each pipe segment is equal and for joined pipe segments the distance D(c) between the outermost spud of one pipe segment to the outermost spud of the other pipe segment is equal to D(o).

A modular linear fireplace gas burner system having a plurality of interconnectable pipe modules and one or more burner members of varying length, each said pipe module having a pipe segment, spuds, orifice mounting blocks and mounting brackets to retain one of more of the burner members, wherein the distance D(o) between adjacent spuds on each pipe segment is equal and for joined pipe segments the distance D(c) between the outermost spud of one pipe segment to the outermost spud of the other pipe segment is equal to D(o).

An apparatus for feeding a fuel, characterized as irregularly shaped fuel chips, from a storage bin to a burner of a cooking grill, includes a conveyance having a plurality of vanes movable from a first position proximate to a fuel source to a second position proximate to a fuel delivery chute leading to the burner. A fuel supply is arranged to feed the fuel to the first position. A chute is arranged having a first end proximate to the second position and a second end proximate to the burner for delivery of the fuel from the vanes at the second position to the burner. The vanes are arranged to scoop up the fuel from the fuel source at the first position, and to deposit the fuel at the second position into the first end of the chute.

Systems and methods for a fire device, comprising injecting multiple gaseous fuel streams upwards to a focal point via corresponding fuel injection ports, wherein the multiple gaseous fuel streams intersect at the focal point; and igniting the multiple gaseous fuel streams at the focal point via the pilot light flame. Deflections panels are coupled to the fire device, in one or more examples.

Systems and methods for a fire device, comprising injecting multiple gaseous fuel streams upwards to a focal point via corresponding fuel injection ports, wherein the multiple gaseous fuel streams intersect at the focal point; and igniting the multiple gaseous fuel streams at the focal point via the pilot light flame. Deflections panels are coupled to the fire device, in one or more examples.

A fireplace is disclosed having a flame screen that is fitted over a gas burner. The gas burner may be an elongated tube having orifices that are configured to produce a row of flames. The row of flames passes through openings in the flame screen to increase the height of the row of flames, change the color of the row of flames, and/or alter a shape or distribution of the row of flames. The flame screen may also facilitate ignition of a gas emitted from the gas burner after the flame screen has been heated by the row of flames.

A fireplace is disclosed having a flame screen that is fitted over a gas burner. The gas burner may be an elongated tube having orifices that are configured to produce a row of flames. The row of flames passes through openings in the flame screen to increase the height of the row of flames, change the color of the row of flames, and/or alter a shape or distribution of the row of flames. The flame screen may also facilitate ignition of a gas emitted from the gas burner after the flame screen has been heated by the row of flames.

A gas hearth including a combustion chamber, a gas supplier for supplying combustible gas into the combustion chamber to a firebed simulator disposed in the combustion chamber, an ignitor for igniting the combustible gas in the combustion chamber, a flue-gas discharge duct connected to the combustion chamber for discharging combustion flue gases from the combustion chamber, and a metering means disposed in the combustion chamber for metering a pyrotechnical additive into the flames of the burning combustible gas during operation.