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The B4022700 is a genuine Goodman 3-inch in-shot burner engineered as a direct OEM replacement for the WFM18140S5DNCB gas furnace and compatible Goodman/Amana models. In-shot burners direct the gas/air mixture into the heat-exchanger tubes for clean, stable combustion. Rust, scale, or a distorted burner can cause delayed ignition, roll-out, and poor flame quality — replace as a matched set for best results.
This factory OEM Goodman burner is stamped to the exact port pattern and length so the flame aligns correctly with the heat-exchanger inlet. Generic burners can misalign the flame, hurting efficiency and heat-exchanger life. For safe, quiet ignition, use OEM burners across the manifold.
Moderate (2/5). Around 20–30 minutes for the set. Shut off gas and power, remove the manifold, slide out the old burners, and seat the new ones on the orifices. If you smell gas or are unsure, contact a licensed HVAC technician.