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The Goodman B4022700 3-inch In-Shot Burner is a genuine OEM replacement engineered for the Amana/Goodman AMH80805CXBB gas furnace. In-shot burners direct the gas/air mixture into the heat exchanger tubes for clean, efficient combustion. Over time burners can corrode, warp, or accumulate scale — causing rough ignition, flame rollout, sooting, or uneven heating. Replacing worn burners restores proper flame characteristics and furnace efficiency.
OEM in-shot burners are dimensioned and ported to match the furnace's exact air/fuel design, ensuring proper flame shape and alignment with the flame sensor and igniter. Generic burners can alter the flame pattern, leading to poor sensing, incomplete combustion, or rollout. For a safety-critical combustion component, OEM is strongly recommended.
Moderate (3/5). Requires removing the burner assembly, transferring/aligning burners, and verifying flame carry-over across all burners. Shut off power and gas, and if you are not comfortable inspecting combustion, have a licensed HVAC technician perform the replacement.