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The Goodman B4022700 3-Inch In-Shot Burner is a genuine OEM gas burner designed for the Goodman ACEC800804BXAA and compatible gas furnaces. The in-shot burner mixes gas and air and delivers the flame into the heat exchanger tube. Over time burners can rust, clog with debris, or develop carbon buildup that causes rough ignition, delayed light-off, or uneven heating. Installing a fresh OEM burner restores a clean, stable flame and reliable startup.
The OEM B4022700 is sized and ported to match the furnace's gas valve and orifice for the correct flame pattern and BTU input. Generic burners can produce flame impingement or improper combustion. For safe, efficient heating, OEM is strongly recommended.
Moderate (3/5). Requires shutting off gas and power, removing the burner assembly, and verifying flame alignment after install. Best performed by a qualified technician. Typical time: 30–45 minutes.