Lochinvar & A.O. Smith 100109326 Burner Assembly

The Lochinvar & A.O. Smith 100109326 Burner Assembly is a critical replacement component for Gas Water Heater Repair, specifically engineered for Natural Gas FVIR (Flammable Vapor Ignition Resistant) systems. This OEM Burner Assembly features a precision-machined #28 Orifice, ensuring optimal stoichiometric combustion and thermal efficiency in high-efficiency water heaters. Designed for professional HVAC maintenance, the assembly includes the burner head, manifold tube, and integrated pilot components necessary to restore factory-spec flame patterns. As a technician, you know that maintaining correct manifold pressure and burner alignment is essential for preventing carbon buildup and premature heat exchanger failure. This assembly provides a drop-in solution for A.O. Smith burner replacement and Lochinvar heating part restoration, meeting strict safety standards for sealed combustion chambers. Ensure the 100109326 part number matches your technical manual to maintain the specific BTU rating and emissions profile required for the appliance.

Key Benefits

• Precision #28 Orifice: Factory-calibrated for Natural Gas FV burner applications to ensure consistent gas flow and heat output.
• Integrated FVIR Technology: Designed to meet flammable vapor ignition resistant standards for enhanced mechanical safety in residential and commercial settings.
• OEM Compatibility: Exact fit for specific A.O. Smith and Lochinvar models, eliminating the need for field modifications or bracket adjustments.
• Durable Construction: Engineered to withstand high thermal cycling without warping, maintaining proper flame impingement on the thermocouple.

Common Questions

What causes a burner assembly to fail in a sealed combustion water heater?
Failure is typically caused by heavy scale accumulation, clogged orifice ports, or a compromised pilot assembly. If you observe lifting flames or yellow-tipping, the burner assembly should be inspected and likely replaced to prevent CO issues.

Is the 100109326 burner compatible with Liquid Propane (LP) units?
No, this specific assembly is configured with a #28 Orifice for Natural Gas. Converting between fuel types requires specific manifold and orifice changes dictated by the manufacturer’s conversion kit requirements.

Does this assembly include the pilot and thermocouple?
Yes, this complete burner assembly typically includes the primary burner, pilot line, and ignition components as a single unit to ensure the FVIR seal remains intact during installation.

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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.