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This genuine OEM Goodman B4022700 is a 3-inch in-shot burner built for the ADS80703ANA gas furnace and compatible Goodman/Amana models. Each in-shot burner directs the gas/air mixture into a single heat-exchanger tube, where it ignites and carries the flame cleanly across the burner bank. Replacing rusted, clogged, or flashback-damaged burners restores smooth, even ignition and helps eliminate delayed-ignition "booms," rough flame, and uneven heating.
The OEM B4022700 is manufactured to the precise venturi diameter, port pattern, and mounting-slot dimensions of your furnace, ensuring proper gas/air mixing and correct flame carry-over between tubes. Generic burners can alter the air shutter geometry and produce sooting or incomplete combustion. For safe, efficient firing, match the OEM burner — and replace the full set if multiple burners are corroded.
Moderate (2/5). Shut off gas and power. The manifold and gas orifices must be removed to slide the burners off their mounting slots; reinstall in the same position and confirm proper crossover ignition. Budget 30–45 minutes for the burner bank. If you are not comfortable working around the gas manifold, have a licensed technician perform the swap.