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The B4022700 is a genuine Goodman/Amana 3-inch in-shot burner engineered for the AMVC81005CNBD two-stage variable-speed gas furnace. Each in-shot burner directs the air/gas mixture into a heat-exchanger tube for clean, efficient, and reliable ignition. Replace burners that are rusted, clogged, or producing an uneven or lifting flame.
The OEM B4022700 matches the exact venturi geometry and length required for this furnace, preserving the factory flame pattern and combustion efficiency. Generic burners can seat improperly and skew the air-fuel mixture, causing sooting, noise, or delayed ignition. On a combustion component, genuine OEM is the safe standard.
Rating: Moderate (3/5). Shut off gas and power, then remove the burner-box cover and manifold to slide the burner out. Burners are typically replaced as a matched set for even firing. After installation, verify manifold pressure and inspect the flame — it should be blue, stable, and fully within the heat-exchanger tubes. Combustion work should be verified by a licensed HVAC technician.
Genuine Goodman OEM replacement. Compatible with matching Amana-branded furnace chassis.