Lochinvar & A.O. Smith 100111337 Burner Assembly

The Lochinvar & A.O. Smith 100111337 Burner Assembly is a precision-engineered OEM replacement component specifically designed for Natural Gas (NG) water heaters and boilers within the Series 200 and 201 production lines. This complete burner and door assembly features an 18-inch configuration equipped with a #37 orifice, ensuring calibrated BTU input and stoichiometric combustion. As a critical combustion chamber component, it integrates the burner head, manifold, and access door to maintain airtight seals and correct flame patterns. Field-verified for compatibility with high-recovery and standard atmospheric venting models, the 100111337 is the direct spec replacement for Lochinvar XVR-50, XGV-50, and A.O. Smith GCV-50, XCV-50, and GVR-50 units. Utilizing this genuine OEM burner assembly prevents common ignition failures and pilot outages associated with non-spec aftermarket kits, preserving the original equipment's thermal efficiency and safety certifications.

Key Benefits for Technicians

• Factory-Calibrated Combustion: Includes the #37 NG orifice to ensure precise gas flow rates and prevent delayed ignition or soot accumulation.
• Streamlined Installation: The complete burner and door assembly design allows for faster chamber access and reduces labor time during manifold service.
• Direct Series Compatibility: Engineered specifically for Series 200/201 chassis, ensuring an exact fit for the burner plate and gasket surfaces.
• Optimized Manifold Pressure: Designed to operate at standard natural gas manifold pressures to maintain consistent flame stability across the burner deck.

Common Questions

Can this burner assembly be converted for Propane (LP) use?
No, the 100111337 is configured specifically for Natural Gas with a fixed #37 orifice. For LP applications, a different assembly with a specific LP-rated orifice must be used to prevent hazardous over-firing.

Does this assembly include the door gasket?
This complete burner and door assembly typically includes the primary mounting door; however, technicians should always inspect the thermal door gasket and replace it if the seal is compromised to prevent CO leakage.

How do I verify if I have a Series 200 or 201 unit?
Check the rating plate on the water heater tank. The first three digits of the serial number or the specific configuration "Series" line will indicate if this 100111337 burner is the correct replacement for your 50-gallon model.

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.