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The Goodman B4022700 3-inch In-Shot Burner is a genuine OEM combustion component for Amana/Goodman AMH81005CNBC gas furnaces. Each in-shot burner injects a precisely shaped gas-air mixture into its heat exchanger tube, producing the clean, stable blue flame required for efficient, safe heating.
Burners that are corroded, rusted, or clogged with debris can cause delayed ignition, roll-out, or uneven heating. Replacing worn burners restores proper flame characteristics and combustion efficiency across the furnace's manifold.
This genuine OEM Goodman burner is stamped and ported to match your manifold's orifice spacing and gas rating exactly. Generic burners may differ slightly in venturi geometry, causing improper flame lift, sooting, or noisy ignition. OEM ensures matched combustion across all tubes.
Moderate (3/5). Requires removing the burner assembly and aligning the burner to its heat exchanger tube and orifice. Gas work should be performed by a qualified HVAC technician. Shut off gas and power before servicing.