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The ALLIED AIR 71L03 is an inshot gas burner designed for use in gas furnaces. Inshot burners fire horizontally into a tubular heat exchanger, making them a standard component in most modern residential forced-air gas furnace designs. This burner delivers a focused flame pattern that promotes efficient combustion across the heat exchanger. At 0.2 pounds, it is a compact, lightweight component. Installation and replacement are typically performed by licensed HVAC technicians as part of routine furnace service or combustion system repair.
The 71L03 is suited for residential gas furnace applications where an inshot-style burner is specified. Inshot burners are commonly found in upflow, downflow, and horizontal furnace configurations. This part is appropriate for service calls involving burner failure, uneven flame patterns, or furnace no-heat diagnostics where the burner assembly has been identified as the faulty component.
Designed as an OEM-style replacement inshot gas burner for residential gas furnaces. Consult equipment documentation to confirm fitment before installation.
Inshot gas burners are installed and replaced by licensed HVAC technicians. Before servicing, shut off the gas supply at the manual shutoff valve and disconnect electrical power to the furnace at the breaker or disconnect switch. Work must comply with applicable local codes and the IFGC. Inspect the burner orifice and surrounding components for debris or corrosion before reinstalling the burner assembly.
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