Some embodiments provide a gas device, the gas device includes a frame and a baffle; the baffle is arranged in the frame, the baffle includes an air guide portion and a heat insulation portion, the air guide portion and the frame are enclosed to form a first air guide channel, and the air guide portion is provided with a first air outlet, the first air outlet communicates with the first air guide channel, and faces the heat insulation portion. In the gas device provided by the present disclosure, a baffle is arranged on the inner side of the gas device, and the baffle can reduce the heat transferred from the inside of the gas device to the gas device, reducing the temperature of the gas device, and reduce the impact of the high temperature generated by the burner on the sheet metal components such as the gas device.

Some embodiments provide a gas device, the gas device includes a frame and a baffle; the baffle is arranged in the frame, the baffle includes an air guide portion and a heat insulation portion, the air guide portion and the frame are enclosed to form a first air guide channel, and the air guide portion is provided with a first air outlet, the first air outlet communicates with the first air guide channel, and faces the heat insulation portion. In the gas device provided by the present disclosure, a baffle is arranged on the inner side of the gas device, and the baffle can reduce the heat transferred from the inside of the gas device to the gas device, reducing the temperature of the gas device, and reduce the impact of the high temperature generated by the burner on the sheet metal components such as the gas device.

A modular forced air burner assembly for rapidly heating contents of an oversized pot includes a frame, which has a top that is substantially open and configured to support a pot. A burner assembly that is selectively positionable below the pot is configured to burn a fuel gas to heat the pot and its contents. A forced air module that is selectively operationally couplable to the burner assembly is configured to force air into the burner assembly to enhance combustion of the fuel gas. A pipe is selectively couplable to an exterior of the frame so that the pipe extends from proximate to a midpoint of the frame past the top of the frame. The pipe is configured to direct heat across a sidewall of the pot to enhance heating of the pot and its contents.

A modular forced air burner assembly for rapidly heating contents of an oversized pot includes a frame, which has a top that is substantially open and configured to support a pot. A burner assembly that is selectively positionable below the pot is configured to burn a fuel gas to heat the pot and its contents. A forced air module that is selectively operationally couplable to the burner assembly is configured to force air into the burner assembly to enhance combustion of the fuel gas. A pipe is selectively couplable to an exterior of the frame so that the pipe extends from proximate to a midpoint of the frame past the top of the frame. The pipe is configured to direct heat across a sidewall of the pot to enhance heating of the pot and its contents.

A modular forced air burner assembly for rapidly heating contents of an oversized pot includes a frame, which has a top that is substantially open and configured to support a pot. A burner assembly that is selectively positionable below the pot is configured to burn a fuel gas to heat the pot and its contents. A forced air module that is selectively operationally couplable to the burner assembly is configured to force air into the burner assembly to enhance combustion of the fuel gas. A pipe is selectively couplable to an exterior of the frame so that the pipe extends from proximate to a midpoint of the frame past the top of the frame. The pipe is configured to direct heat across a sidewall of the pot to enhance heating of the pot and its contents.

An array includes a plurality of refractory bricks, each having a substantially tubular body including a first end, an opposed second end, a central bore extending from the first end to the second end along the longitudinal length thereof and defining an inner surface of the refractory brick, and an outer surface extending from the first end to the second end along the longitudinal length thereof. The outer surface of each refractory brick has a shape that transitions axially between a plurality of hexagonal portions and non-hexagonal portions along the longitudinal lengths thereof, and the plurality of refractory bricks are arranged and interlocked with one another in a vertical and horizontal manner via mating members provided on the hexagonal portions of the outer surfaces thereof. A continuous plenum space is defined by the non-hexagonal portions of the refractory bricks arranged in the array.

A combustion furnace includes an inner shell, an outer shell, a gas inlet piping and a flame inhibiting cover. The inner shell defines a receiving cavity therein. The inner shell defines a plurality of first gas holes around the periphery of a top portion thereof. The inner shell defines a gas inlet hole at a bottom thereof. The outer shell encloses the inner shell such that a gas flowing space is defined between the inner shell and the outer shell. The gas inlet piping has an opening formed at one end thereof, and the gas inlet piping communicates with the gas flowing space. The flame inhibiting cover is atop the outer shell and the inner shell, and a lower flange of the flame inhibiting cover is below the first gas holes.

A combustion furnace includes an inner shell, an outer shell, a gas inlet piping and a flame inhibiting cover. The inner shell defines a receiving cavity therein. The inner shell defines a plurality of first gas holes around the periphery of a top portion thereof. The inner shell defines a gas inlet hole at a bottom thereof. The outer shell encloses the inner shell such that a gas flowing space is defined between the inner shell and the outer shell. The gas inlet piping has an opening formed at one end thereof, and the gas inlet piping communicates with the gas flowing space. The flame inhibiting cover is atop the outer shell and the inner shell, and a lower flange of the flame inhibiting cover is below the first gas holes.

A low NOx burner has a housing that includes a burner head defining a gas manifold and a primary flame zone downstream of the burner head. The burner has a gas inlet for receiving gas. Flow-through air vents are disposed around a center of the burner head and extending through the burner head thereby enabling cold core air to flow from an annular core space upstream of the burner head to the primary flame zone downstream of the burner head. The burner also includes a plurality of premix air vents in fluid communication with the manifold for premixing air and gas within the manifold and for emitting premixed air and gas into the primary flame zone. A plurality of staging pipes extend from the manifold into the primary flame zone for conveying gas into the primary flame zone. The burner includes an ignition device extending into the primary flame zone.