Lochinvar & A.O. Smith 100110897 Burner Assembly

The Lochinvar & A.O. Smith 100110897 Burner Assembly is a critical OEM replacement component designed for high-efficiency residential and light-commercial water heaters and boilers. This radial fire burner is engineered to ensure precise gas-to-air ratios, facilitating complete combustion and maintaining the 96% thermal efficiency ratings typical of power-vent and power-direct vent models. As a veteran technician knows, 100110897 serves as the direct replacement for A.O. Smith 9006099205, providing a seamless fit for legacy systems experiencing ignition failure or rough operation due to debris accumulation.

Constructed from high-grade materials to withstand intense thermal cycling, this 100110897 burner includes the necessary mounting flange and is optimized for low-emission performance. When performing a water heater burner replacement, verify the blower transition and ensure the flame sensor is cleaned with fine steel wool—never coarse abrasives—to maintain signal integrity. Weighing approximately 1.56 lbs, this assembly is designed for straightforward field installation, restoring the 100,000 BTU/hr input capacity required for demanding Lochinvar heating system applications without compromising the integrity of the combustion chamber.

Key Benefits

• Optimized Combustion: Features a radial fire burner design that maximizes heat transfer while significantly reducing nitrogen oxide (NOx) emissions.
• Direct OEM Compatibility: Serves as the official replacement for 9006099205, ensuring factory-spec alignment with Lochinvar and A.O. Smith power-vented units.
• Heavy-Duty Construction: Built to resist warping and carbon buildup, extending the service life of the burner tube assembly in high-demand environments.
• Precision Engineering: Maintains the specific BTU input requirements for 50-gallon high-efficiency models, preventing dangerous over-firing or under-performance.

Common Questions

Which models are compatible with the 100110897 burner assembly?
This assembly is primarily used in 96% thermally efficient 50-gallon power-vent and power-direct vent water heaters from Lochinvar and A.O. Smith. It is the verified replacement part for the obsolete 9006099205 burner.

What are the signs that a burner assembly needs replacement?
Technicians should look for inconsistent flame patterns, "booming" during ignition, or recurring flame sensor lockout codes. If the radial mesh is clogged with debris or showing signs of physical degradation, a full assembly replacement is necessary to restore safe operation.

Does this assembly include the flame sensor and igniter?
While the 100110897 is the primary burner and mounting flange assembly, we recommend inspecting the existing flame sensor and 1/8" hex mounting screws during installation. Always use a long T-handle hex wrench to avoid stripping the blower flange mounting screws.

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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.