Lochinvar & A.O. Smith 100093991 Burner Assembly

The Lochinvar & A.O. Smith 100093991 Burner Assembly is a critical OEM component designed for high-efficiency commercial boilers and water heaters. Engineered specifically for natural gas water heater repair, this assembly ensures precise fuel-to-air ratios and stable flame patterns. This NAT FINAL BURNER ASSY is a direct replacement part used across several Lochinvar Knight and A.O. Smith Cyclone models, maintaining the original equipment’s combustion integrity. Technicians should prioritize this genuine assembly to resolve issues related to irregular ignition, burner flame sensor failures, or excessive carbon monoxide production. The high-grade stainless steel construction resists thermal stress, preventing warping during long heating cycles. When performing a commercial boiler burner replacement, verifying the manifold pressure and gas valve calibration is essential for optimal HVAC combustion efficiency. This assembly facilitates seamless integration into the heat exchanger assembly, ensuring the system meets specified BTU inputs while maintaining low NOx emissions.

• OEM Precision: Direct replacement part for Lochinvar and A.O. Smith systems ensuring exact fitment and factory-standard performance.
• Enhanced Durability: Constructed with heavy-duty materials designed to withstand high-temperature combustion environments without premature failure.
• Optimized Combustion: Engineered for natural gas burner assembly applications to provide a consistent, uniform flame for maximum heat transfer.
• System Reliability: Reduces the frequency of maintenance calls by eliminating common causes of ignition Lockout and flame lifting.

Common Questions

Is this burner assembly compatible with propane (LP) units?
No, the 100093991 is configured specifically for natural gas applications. Converting the unit would require a specific LP orifice and gas valve adjustment according to manufacturer specifications.

What are the signs that a Lochinvar burner assembly needs replacement?
Look for physical signs of erosion, clogged ports that cannot be cleaned, or persistent flame rectification faults that are not resolved by cleaning the flame rod.

Can this assembly be used in A.O. Smith Cyclone models?
Yes, this part number is a cross-functional component used in both Lochinvar and A.O. Smith commercial water heating platforms that utilize the same combustion architecture.

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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.