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The Goodman B4022700 is a 3-inch in-shot burner for the GDH80403ANBC gas furnace and compatible Goodman/Amana 80% AFUE models. Each in-shot burner directs the gas/air mixture into a single heat-exchanger tube for clean, efficient combustion. Replace burners that are rusted, clogged, or producing an uneven, sooty, or noisy flame to restore reliable ignition and full heat output.
The OEM Goodman burner is matched to the furnace's orifice size, port pattern, and flame characteristics for correct BTU delivery and safe flame sensing. Generic burners may alter the flame shape, causing flame-rollout, poor flame-sensor readings, or lockouts. For a combustion component, OEM is strongly recommended.
Requires removing the burner assembly and aligning each burner to its orifice and tube. Plan 30–45 minutes and verify the flame after startup. Gas and combustion work should be performed by a qualified technician.