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The Goodman B4022700 is a genuine OEM 3-inch in-shot gas burner for the ACEC800603AXAB and compatible Goodman/Amana units. In-shot burners deliver the air/gas mixture into each heat-exchanger tube for smooth, even ignition and clean combustion. Replacing worn, rusted, or clogged burners restores reliable lighting and helps eliminate delayed-ignition rumble and uneven heating.
Generic burners may have a different port size or flame profile, causing delayed ignition, flame rollout, or sooting. The OEM B4022700 matches the factory orifice alignment and flame characteristics for safe, efficient operation — sold individually, so order the quantity your furnace requires.
Moderate (3 of 5). Involves working in the gas burner compartment and aligning the burner to its orifice. Turn off gas and power first. Because this is a combustion component, professional installation by a licensed HVAC technician is strongly recommended.