Lochinvar & A.O. Smith 100135275 Burner

For contractors servicing high-efficiency hydronic systems, the Lochinvar & A.O. Smith 100135275 Burner is the direct OEM replacement engineered for the KB81 burner assembly. This stainless steel premix burner is specifically designed for horizontal firing, ensuring optimal flame stability and uniform heat distribution within the combustion chamber. Built to withstand the rigors of high-temperature gas-fired applications, it is a critical component for restoring the combustion efficiency of Lochinvar Knight boilers and compatible A.O. Smith water heaters. The assembly often includes necessary burner gaskets (KB081) to ensure a gas-tight seal, preventing flue gas leakage and maintaining the integrity of the sealed combustion system. By utilizing this genuine OEM burner part, technicians ensure a precise air-to-fuel ratio and reliable flame ignition, maximizing the performance and longevity of condensing boiler units. This 100135275 burner kit is the industry standard for maintaining HVAC system reliability in demanding commercial and residential environments.

• OEM Compatibility: Precision-fit for Lochinvar Knight KB81 models and specified A.O. Smith units, ensuring seamless integration with existing multi-speed combustion blowers.
• Durable Construction: Manufactured from high-grade stainless steel to resist thermal stress and corrosion in high-efficiency condensing applications.
• Optimized Performance: Engineered for a premix design that stabilizes the flame and reduces nitrogen oxide (NOx) emissions.
• Installation Ready: Often supplied with replacement gaskets (check individual kit specs) to facilitate a complete and secure burner assembly swap.

What boiler models use the Lochinvar 100135275 burner?
This burner is primarily utilized in the Lochinvar Knight KB81 series and equivalent A.O. Smith gas-fired boilers. Always verify the MPN 100135275 against your specific unit’s technical manual.

Are gaskets included with this burner assembly?
The 100135275 is typically provided as a burner assembly with gaskets to ensure a proper seal during the replacement process, which is vital for maintaining the ASME-rated pressure and safety of the heat exchanger.

Why is my burner showing signs of premature wear?
Burner degradation is often caused by improper gas pressure, poor airflow, or lack of annual preventative maintenance. Replacing a fouled burner restores heating capability and prevents damage to the ceramic fiberboard insulation.

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.