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The Goodman B4022700 is a genuine OEM 3-inch in-shot burner for the AMH80704BXCC gas furnace and compatible Goodman/Amana models. Each in-shot burner directs the gas/air mixture into the heat exchanger for clean, stable ignition and efficient heat transfer. Replace as a set when burners show rust, scaling, or uneven flame.
OEM in-shot burners are manufactured to Goodman's exact port pattern and flame characteristics, ensuring proper flame carryover and safe, efficient combustion. Generic burners can alter the flame profile, causing sooting, delayed ignition, or hot spots on the heat exchanger. For combustion components, OEM is the safe standard.
Moderate (2/5). Burners typically slide out of the burner rack once the manifold is loosened. Straightforward for a handy DIYer; a technician is recommended if gas manifold removal is required. Always shut off gas and power first.