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The Goodman B4022700 is a genuine OEM 3-inch in-shot burner engineered as a direct-fit replacement for the Goodman ADSH800804BXAA gas furnace and other compatible models. Each in-shot burner directs a precise gas/air mixture into a single heat-exchanger tube for clean, stable ignition and efficient combustion. Corroded, rusted, or misfiring burners cause delayed ignition, roll-out, uneven heating, and sooting — replacing them restores safe, reliable flame.
Genuine OEM in-shot burners are calibrated to the furnace's exact orifice size and venturi geometry, ensuring the correct flame pattern and BTU input. Generic burners can alter the air/fuel mixture, producing poor combustion, elevated CO, or nuisance lockouts. For a combustion component, the OEM part is strongly recommended for safety and efficiency.
Moderate (3/5) — Replacement involves shutting off gas and power, removing the burner assembly and manifold, swapping the burner, and verifying proper alignment with the igniter and flame sensor. Because this is a combustion component, we recommend installation by a licensed HVAC technician who can confirm flame quality and safe operation.