Lochinvar & A.O. Smith 100135316 Burner

Maintaining peak combustion efficiency in Lochinvar Copper-Fin systems requires high-grade components engineered for high-input applications. The Lochinvar & A.O. Smith 100135316 Burner is a precision-manufactured main burner assembly designed to deliver a stable, reliable flame pattern across various residential and commercial heating platforms. This authentic OEM replacement burner is physically and functionally identical to the BNR3501 burner, ensuring a drop-in fit without the need for manifold modifications. High-output boilers like the Copper-Fin CB, CW, and CS 985-2065 models rely on these atmospheric burners to maintain consistent thermal transfer. Each 100135316 unit comes pre-equipped with a burner compression fitting, facilitating a secure gas-tight connection to the pilot tubing or manifold assembly. Whether you are servicing a Lochinvar water heater or a high-capacity pool heater, utilizing this 100135316 BNR3501 equivalent prevents common combustion issues like lifting flames or delayed ignition, keeping your client's equipment within factory-specified operating parameters.

• Direct OEM Compatibility: Engineered specifically for Lochinvar BNR3501 applications, ensuring exact orifice alignment and heat distribution.
• Integrated Hardware: Includes a factory-installed compression fitting to streamline field replacement and reduce labor time.
• Multi-Equipment Utility: Validated for use in Copper-Fin boilers, commercial water heaters, and large-scale pool heating systems.
• Durable Construction: Built to withstand high-temperature environments, preventing premature warping or port clogging.

Is the 100135316 interchangeable with the BNR3501?
Yes, these parts are identical. Part number 100135316 is the updated A.O. Smith/Lochinvar SKU used to replace the legacy BNR3501 burner assembly.

Which boiler models use this specific burner?
This burner is commonly found in Copper-Fin II and standard Copper-Fin series, including models 990, 1260, 1440, 1800, and 2070, as well as the 985-2065 range.

Does this burner include the gas orifice?
This SKU typically covers the burner tube and compression fitting. Technicians should verify the existing orifice size and condition during the swap to ensure proper BTU output and gas manifold pressure.

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.