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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/Amana AMH80804BNBA 80% AFUE gas furnace. Each in-shot burner directs the gas/air mixture into a heat-exchanger tube for ignition. Rusted, warped, or clogged burners cause rollout, delayed ignition, sooting, or uneven heating — replacing them restores clean, quiet, efficient combustion.
The OEM B4022700 has the exact port pattern, orifice alignment, and flame geometry Goodman specifies for this furnace, ensuring proper ignition carryover between burners and correct flame-sensor rectification. Generic burners can misalign the flame, cause ignition faults, or fail flame sensing. For safe, reliable operation, use the matched OEM burner and replace as a full set when possible.
Moderate (3/5). Requires shutting off gas and power, removing the burner assembly/manifold, and reseating the burner over its orifice with correct spacing. Basic hand tools needed. Verify flame pattern and ignition carryover after reassembly. Typical time: 30–45 minutes.
Gas appliance repair carries safety risk — if you are not confident, hire a licensed HVAC technician.