Lochinvar & A.O. Smith 100110710 Burner

The Lochinvar & A.O. Smith 100110710 Burner is a 60 MM Burner GEN II designed specifically for high-efficiency gas-fired commercial boilers and water heaters. As an OEM replacement, this main burner assembly is critical for maintaining the tight combustion tolerances required by Lochinvar Knight and A.O. Smith AGB/GW series units. The Gen II design features a refined 60mm nozzle diameter to optimize the fuel-to-air mixture, ensuring stable flame patterns and maximum heat transfer efficiency. In the field, technicians rely on the 100110710 60mm burner to resolve issues involving irregular combustion, resonance, or poor fuel economy in 399K BTU models and commercial series 100 through 110. Using this genuine Lochinvar burner replacement ensures exact physical fitment with existing premix blowers and gas valves, preventing the manifold pressure discrepancies often seen with inferior aftermarket alternatives. This industrial HVAC burner is the standard for restoring factory-spec performance in high-demand hydronic heating environments.

Key Benefits

• Precision Engineering: The 60mm nozzle diameter provides the exact flame geometry required for Lochinvar Gen II burners.
• Enhanced Combustion: Direct OEM replacement improves heat exchange efficiency and reduces carbon buildup on the secondary heat exchanger.
• System Compatibility: Built for flawless integration with A.O. Smith commercial boilers (AGB, GW, and 400-405 series).
• Rugged Durability: Constructed to withstand the thermal cycling associated with high-modulation commercial heating cycles.

Common Questions

Which boiler models use the 100110710 burner?
This 60 MM Burner GEN II is primarily used in Lochinvar Knight (WHB 399 models) and A.O. Smith commercial gas boilers, specifically the AGB 1000 through 2500 and GW 1000 through 2500 series.

Can I use this burner as a universal 60mm replacement?
No, this is a genuine OEM repair part. While it features a 60mm nozzle, the mounting flange and gas-air arm configuration are specific to Lochinvar and A.O. Smith technical specs and are not universal.

What are the symptoms of a failing 100110710 burner?
Technicians typically look for inconsistent ignition, "rumbling" during the high-fire modulation stage, or visible warping of the burner mesh, all of which indicate it is time for a burner assembly replacement.

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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.