Lochinvar & A.O. Smith 100233340 Burner

The Lochinvar & A.O. Smith 100233340 Burner is a precision-engineered main burner assembly designed for high-efficiency combustion in commercial and residential hydronic systems. As a critical HVAC replacement part, this OEM gas burner is specifically calibrated for the Lochinvar Knight series and compatible A.O. Smith copper-fin boiler models. It features a robust construction capable of managing a wide firing range from 45K to 500K BTU, ensuring stable flame characteristics and optimal fuel-to-air ratios. This replacement burner 100233340 facilitates uniform heat distribution across the heat exchanger, which is vital for maintaining system efficiency and reducing carbon emissions. For field technicians, the standardized dimensions allow for a direct-fit installation, minimizing downtime during critical service calls. Proper integration of this burner component ensures the ignition system operates reliably under modulating loads, preventing common issues like resonance or uneven combustion. Utilizing genuine Lochinvar boiler parts like this assembly preserves the original equipment's performance specifications and operational safety standards.

• Universal Compatibility: Engineered for seamless integration with both Lochinvar and A.O. Smith Knight series boilers and water heaters.
• Enhanced Combustion Efficiency: Precisely machined ports provide a stable, modulating flame for superior fuel economy.
• Industrial-Grade Durability: Constructed from high-temperature resistant materials to withstand the thermal stress of continuous cycling.
• Direct OEM Replacement: Matches factory specifications for weight (0.93 lbs) and dimensions (10" x 10" x 5") to ensure a perfect fit.

Which boiler models are compatible with the 100233340 burner?
This burner is designed for use in a wide array of models, including the CBL045M-9 through CBL260M-9 and CBN045M-9 through CBN260M-9 series. It is a standard component for many Lochinvar Knight and A.O. Smith commercial units.

What are the signs that a main burner needs to be replaced?
Technicians should inspect for soot buildup, split burner ports, or uneven flame patterns. If the boiler is experiencing "booming" ignitions or frequent flame-loss lockouts, the burner assembly should be checked for physical degradation.

Does this burner include the igniter or gaskets?
This SKU typically covers the main burner head and assembly. We recommend inspecting your existing gas train gaskets and igniter bracket during installation, as these may require separate replacement to ensure a proper airtight seal.

This item is not eligible for free shipping.

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.