Abstract: A burner assembly for providing a flame and combustion gas to a plurality of inlets includes a burner frame having a channel formed therein. The channel extends parallel to a longitudinal plane defined by the plurality of inlets. A burner is mounted within the channel of the burner frame. The burner is arranged in fluid communication with the plurality of inlets. A burner bracket is used to mount the burner assembly within a burner box. The burner bracket defines a cavity within which the channel of the burner frame and the burner are positionable.

Abstract: Disclosed is a baffle for a mixing region of a furnace burner box, the mixing region being a volume in the burner box defined in a transverse direction between a burner at a front portion of the burner box and an opposing a rear portion of the burner box, a longitudinal direction between opposing side surfaces of the burner box, and a height-wise direction between opposing top and bottom surfaces of the burner box, the baffle having: a first side which is a rear side, a second side which is a front side, the first side and the second side being spaced in the transverse direction, and wherein the baffle defines an indirect fluid passageway between the first side and the second side.

Abstract: A burner assembly for providing a flame and combustion gas to a plurality of inlets includes a burner frame having a channel formed therein. The channel extends parallel to a longitudinal plane defined by the plurality of inlets. A burner is mounted within the channel of the burner frame. The burner is arranged in fluid communication with the plurality of inlets. A burner bracket is used to mount the burner assembly within a burner box. The burner bracket defines a cavity within which the channel of the burner frame and the burner are positionable.

Abstract: Disclosed is an induced-draft gas-fired furnace that includes: an electronic furnace controller, a burner assembly, a gas valve, and an inducer motor, wherein the controller: accelerates the inducer motor at a first pre-ignition rate to a first pre-ignition speed; controls the gas valve to supply gas to the burner assembly to obtain a first pre-ignition ratio of fuel to air, operates an igniter to attempt to ignite the first fuel mixture, determines whether fuel has ignited in the burner assembly, wherein when fuel having the first pre-ignition ratio of fuel to air remains unignited after a plurality of ignition attempts, the controller: decelerates the inducer motor to a second pre-ignition rate to obtain a second pre-ignition speed and a second fuel mixture comprising a second pre-ignition ratio of fuel to air, and determines whether the second fuel mixture has ignited in the burner assembly.

Abstract: Disclosed is an induced-draft gas-fired furnace that includes: an electronic furnace controller, a burner assembly, a gas valve, and an inducer motor, wherein the controller: accelerates the inducer motor at a first pre-ignition rate to a first pre-ignition speed; controls the gas valve to supply gas to the burner assembly to obtain a first pre-ignition ratio of fuel to air, operates an igniter to attempt to ignite the first fuel mixture, determines whether fuel has ignited in the burner assembly, wherein when fuel having the first pre-ignition ratio of fuel to air remains unignited after a plurality of ignition attempts, the controller: decelerates the inducer motor to a second pre-ignition rate to obtain a second pre-ignition speed and a second fuel mixture comprising a second pre-ignition ratio of fuel to air, and determines whether the second fuel mixture has ignited in the burner assembly.

Abstract: Disclosed is a baffle for a mixing region of a furnace burner box, the mixing region being a volume in the burner box defined in a transverse direction between a burner at a front portion of the burner box and an opposing a rear portion of the burner box, a longitudinal direction between opposing side surfaces of the burner box, and a height-wise direction between opposing top and bottom surfaces of the burner box, the baffle having: a first side which is a rear side, a second side which is a front side, the first side and the second side being spaced in the transverse direction, and wherein the baffle defines an indirect fluid passageway between the first side and the second side.

Abstract: Systems, apparatuses, and methods described herein are directed to a heat exchange tube structure and an arrangement of heat exchange tubes that enhance or help promote fluid flow through a heat exchanger. Bend portions of heat exchange tubes may be structured and configured to allow for gaps so that fluid may pass an assembly of the heat exchange tubes. The heat exchange tubes may be arranged to expose the air gaps at the bend portions of the heat exchange tubes to promote fluid flow.

Abstract: Systems, apparatuses, and methods described herein are directed to a heat exchange tube structure and an arrangement of heat exchange tubes that enhance or help promote fluid flow through a heat exchanger. Bend portions of heat exchange tubes may be structured and configured to allow for gaps so that fluid may pass an assembly of the heat exchange tubes. The heat exchange tubes may be arranged to expose the air gaps at the bend portions of the heat exchange tubes to promote fluid flow.

Abstract: Systems, apparatuses, and methods described herein are directed to a heat exchange tube structure and an arrangement of heat exchange tubes that enhance or help promote fluid flow through a heat exchanger. Bend portions of heat exchange tubes may be structured and configured to allow for gaps so that fluid may pass an assembly of the heat exchange tubes. The heat exchange tubes may be arranged to expose the air gaps at the bend portions of the heat exchange tubes to promote fluid flow.

Abstract: Systems, apparatuses, and methods described herein are directed to a heat exchange tube structure and an arrangement of heat exchange tubes that enhance or help promote fluid flow through a heat exchanger. Bend portions of heat exchange tubes may be structured and configured to allow for gaps so that fluid may pass an assembly of the heat exchange tubes. The heat exchange tubes may be arranged to expose the air gaps at the bend portions of the heat exchange tubes to promote fluid flow.