Lennox 71M82 Main Burner

When performing a field service upgrade or restoring a heating system, using a genuine Lennox 71M82 Main Burner is critical for maintaining the intended combustion profile. This OEM Lennox furnace burner, also identified by part number LB-106845A, is engineered from corrosion-resistant, robust materials to withstand high-thermal stress environments in residential and commercial units. As a veteran technician knows, precise burner orifice alignment and uniform flame distribution are non-negotiable for preventing soot buildup and ensuring the heat exchanger remains within safe operating temperatures. This replacement gas burner is a direct-fit component for a wide range of Lennox equipment, including the GCS16, GCS24, and GHP16 series. Replacing a warped or clogged burner with this high-grade HVAC combustion component ensures optimal fuel-to-air ratios and consistent ignition across the entire manifold, effectively restoring system efficiency and reducing unnecessary furnace cycling for your clients.

• Precise OEM Fit: Designed specifically for Lennox furnace models, ensuring seamless integration with existing manifolds and venturi tubes.
• Enhanced Durability: Constructed from heavy-duty materials that resist oxidation and thermal fatigue in demanding industrial and residential applications.
• Optimized Combustion: Engineered to provide a stable, controlled flame that maximizes heat transfer efficiency and reduces emissions.
• Reduced Service Callbacks: Using genuine 71M82 burner parts ensures long-term reliability and prevents common issues like delayed ignition or uneven heating.

Is the 71M82 compatible with LP (Propane) conversion kits?
Yes, this main burner is designed to work within the standard Lennox manifold assembly. However, if you are converting from natural gas to liquid propane, you must ensure the correct LP orifices and spring kits are installed according to the manufacturer’s specifications for your specific model.

What are the signs that a Lennox main burner needs replacement?
Look for visible signs of "waisting" (thinning of the metal), heavy oxidation, or clogged ports that cannot be cleared. If you observe yellow-tipping or lifting flames that persist after adjusting the primary air shutter, the burner integrity may be compromised.

Does this burner include the mounting hardware or orifice?
The 71M82 is typically the burner body itself. You should retain the existing mounting brackets and orifices unless they show signs of damage. Always verify the orifice size matches the BTU rating of the specific cabinet you are servicing.

This item is not eligible for free shipping.

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.