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The Goodman B4022700 is a genuine OEM 3-inch in-shot burner built for the Goodman ACVC801005CXAA gas furnace. In-shot burners deliver the gas-air mixture into the heat exchanger tubes for clean, efficient combustion. Over time, burners can rust, clog with debris, or develop carbon buildup that causes uneven flames, delayed ignition, rollout, or sooting. Replacing worn burners — typically the full set at once — restores a crisp blue flame and proper furnace efficiency.
Burner geometry, orifice alignment, and length directly affect the flame pattern and how cleanly fuel burns. The OEM B4022700 is machined to the exact 3-inch specification of your furnace, ensuring correct flame impingement into the heat exchanger. Generic burners may differ in venturi shape and produce an improper flame, reducing efficiency and increasing carbon monoxide risk.
Moderate (3/5). Plan 30-60 minutes. Shut off gas and power, remove the burner box cover, disconnect the manifold, slide out the old burners, and seat the new ones squarely over the orifices. For best results, replace all burners together and inspect the igniter and flame sensor.