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The Goodman B4022700 3-Inch In-Shot Burner is a genuine OEM replacement for the gas burners on the AMH80604BNBB 80% AFUE furnace and compatible Goodman/Amana models. Each in-shot burner delivers a stable, correctly shaped flame into the heat exchanger tube for efficient, quiet ignition and clean combustion.
Genuine OEM B4022700 burners are dimensioned to align precisely with the gas manifold orifices and heat-exchanger inlets, preserving the factory air-fuel mixture. Generic burners can shift the flame pattern, causing sooting, roll-out, or flame-sensor dropouts. OEM protects both efficiency and safety.
Moderate (2/5). Requires shutting off gas and power, removing the burner assembly cover, and swapping burners while keeping orifice alignment. Recommended for HVAC technicians. Verify flame quality after install.