Lennox 58L69 Main Burner

As a field-tested Lennox 58L69 main burner, this OEM replacement is a critical high-grade component engineered for large-scale heat exchange in high-efficiency gas furnaces. This furnace burner assembly features a robust 5-tube construction, designed to ensure uniform flame distribution across the manifold for optimal combustion stability. Primarily utilized in the G23 and G40 series, it serves as a direct drop-in for Lennox replacement part LB-94731D and 50J55, maintaining the necessary btu/h capacity for large 125,000 BTU systems like the G23Q3/4-125-6. This heavy-duty metal gas furnace burner is precision-machined to manage 75 PSI gas pressure, providing the precise air-to-fuel ratio demanded by modern Lennox HVAC systems. Replacing a fouled or cracked burner tube is essential for preventing delayed ignition and ensuring consistent heat transfer through the exchanger. The 15-1/4" x 5-3/4" footprint provides a seamless fit for contractors performing mid-winter repairs or preventative maintenance on residential heating units.

• OEM Compatibility: Engineered as a direct mechanical replacement for Lennox furnace part 58L69, ensuring perfect alignment with existing burner orifices.
• Enhanced Combustion: The 5 burner tube configuration delivers a balanced flame pattern, reducing carbon build-up and improving overall thermal efficiency.
• Durable Construction: Fabricated from high-grade corrosion-resistant metal to withstand the thermal stress of frequent cycling in harsh heating environments.
• Broad Application: Versatile enough for use across multiple Lennox, Armstrong, and Ducane platforms, specifically the G23, G26, and G40 furnace lines.

• Which Lennox furnace models are compatible with this burner? This assembly is primarily used in G23Q3/4-125-6 and various G40 series units. Always verify your specific model number against the Lennox 58L69 manual specifications.
• Does this include all five burner tubes as a single assembly? Yes, this is a complete 58L69 cluster burner unit, featuring five pre-assembled tubes for a faster swap-out during service calls.
• Can this burner replace older part numbers? Absolutely. It is the updated replacement for part numbers LB-94731D, 50J55, and LB-64500D.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.