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The Goodman B4022700 3-Inch In-Shot Burner is a genuine OEM replacement for the AMH80803BNBC gas furnace and compatible Goodman/Amana 80% AFUE models. In-shot burners meter and shape the gas-air mixture as it fires into the heat exchanger. Over time burners corrode, rust, or clog with debris, causing rough ignition, delayed light-off, flame rollout, or a booming sound at startup — all signs it is time to replace the burner set.
This OEM Goodman burner is manufactured to the precise venturi geometry and mounting dimensions your furnace requires. Generic burners can alter the flame pattern and air-fuel ratio, leading to sooting, incomplete combustion, or heat-exchanger stress. For safe, efficient firing we strongly recommend OEM. Replace all burners as a matched set for even ignition.
Moderate. Requires removing the burner assembly, transferring the flame sensor and igniter, and verifying alignment with the heat exchanger ports. Always shut off gas and electrical power first, and check flame quality after install. If you are not comfortable working with gas-fired equipment, hire a licensed HVAC professional.
Exact-fit OEM sourcing with fast shipping from NationalHVACParts.com.