Lochinvar & A.O. Smith 100110271 Pilot Burner

The Lochinvar & A.O. Smith 100110271 Pilot Burner is a critical OEM replacement component designed for high-efficiency gas-fired boilers and commercial water heaters. This natural gas pilot assembly ensures reliable ignition and flame rectification for the main burner circuit. Engineered to meet precise tolerances for Lochinvar Knight and A.O. Smith Cyclone series, this assembly features a durable stainless steel pilot hood and integrated electrode for consistent spark gap maintenance. When troubleshooting HVAC flame signal failure or intermittent ignition lockouts, replacing the 100110271 restores the millivolt output or flame sensing required by the ignition control module. It is compatible with various high-recovery models, including the Lochinvar KBN and A.O. Smith BTH series units. As an authentic OEM HVAC part, it guarantees the correct orifice sizing and alignment needed to maintain the factory-specified combustion profile and prevent premature carbon buildup on the igniter-sensor probes.

Key Benefits

• Precise Flame Pattern: Engineered for stable flame-to-sensor contact to ensure consistent flame rectification.
• Robust Construction: High-grade alloys resist thermal fatigue and oxidation in high-duty cycle commercial applications.
• OEM Compatibility: Exact fit for Lochinvar 100110271 and A.O. Smith 9005934005 cross-references, eliminating field-modification needs.
• Optimal Ignition: Maintains proper spark positioning for reliable startup in various atmospheric conditions.

Common Questions

What causes this pilot burner to fail prematurely?
Environmental contaminants and high humidity can lead to oxidation on the sensor rod or electrode, resulting in a weak flame signal. Regular inspection during annual maintenance is recommended for high-output boilers.

Can this pilot burner be used for Propane (LP) applications?
This specific part is configured for Natural Gas. Utilizing it in an LP system requires the installation of the manufacturer-specified LP orifice to ensure the correct fuel-to-air ratio.

Does this assembly include the mounting gasket?
Technicians should verify the condition of the existing mounting seal. While the assembly includes the primary burner components, replacing the flange gasket is best practice to ensure a gas-tight seal on the combustion chamber.

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.