Lochinvar & A.O. Smith 100109236 Burner Assembly

This Lochinvar & A.O. Smith 100109236 Burner Assembly is a factory-spec replacement designed for Natural Gas (NAT) water heaters and commercial boilers. As a critical combustion component, this final burner assembly features a #36 orifice integrated into a Flammable Vapor (FV) ignition system, ensuring precise fuel-to-air ratios for high-efficiency performance. This unit is the direct updated version for part number 9003442005. For service technicians, this assembly facilitates a seamless OEM burner replacement, maintaining the integrity of the original equipment's venting and safety protocols. Engineered by Lochinvar and A.O. Smith, it ensures reliable pilot ignition and stable flame rectification, which are essential for preventing nuisance lockouts in high-demand domestic water heating environments. Replacing worn burners with this genuine 100109236 kit restores optimal BTU input and reduces emissions caused by improper combustion.

Key Benefits

• Includes a precision-calibrated #36 Orifice for consistent Natural Gas flow and thermal output.
• Designed specifically for Flammable Vapor (FV) resistant systems to meet modern safety standards.
• Direct OEM replacement compatibility ensures alignment with existing mounting brackets and gas manifold connections.
• Engineered to prevent carbon buildup and premature manifold failure in commercial and residential heaters.

Common Questions

What models are compatible with the 100109236 burner assembly?
This assembly is compatible with several A.O. Smith and Lochinvar units. Typically, it replaces the 9003442005 manifold and is used in models like the GCV series; always verify your specific model and serial number before installation.

Can this burner be used with Propane (LP) gas?
No, this specific assembly is configured for Natural Gas with a #36 orifice. Using it with LP gas without a proper conversion kit is hazardous and will cause improper combustion.

Does this kit include the thermal switch and pilot assembly?
This is a final burner assembly kit which generally includes the burner head, manifold tube, and the orifice; however, internal components can vary by production batch, so checking the existing pilot assembly for wear is recommended during replacement.

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.