Lochinvar & A.O. Smith 100187922 Burner Assembly

The Lochinvar & A.O. Smith 100187922 Burner Assembly is a critical OEM replacement burner engineered for precision combustion in industrial and commercial water heating applications. This 18-inch natural gas burner is factory-calibrated with a #34 orifice, ensuring the exact stoichiometric ratio required for high-efficiency thermal output. Designed to replace legacy part numbers 100187922 and 9005953005, this assembly maintains the integrity of the original equipment's manifold pressure and flame rectification signals. For technicians servicing Lochinvar and A.O. Smith boilers or high-recovery water heaters, utilizing this genuine Lochinvar burner assembly is essential for preventing delayed ignition and ensuring consistent heat exchanger transfer. The rugged stainless steel construction is built to withstand high-cycle operations without warping, providing a reliable solution for NAT gas burner maintenance. This component is optimized for performance in systems requiring a 100187922 specification to maintain safety certification and operational efficiency.

• Direct OEM Fit: Ensures seamless integration with existing gas manifolds and pilot assemblies without field modifications.
• Pre-Sized #34 Orifice: Eliminates the need for manual drilling or orifice swapping, ensuring precise natural gas combustion.
• Durable 18-Inch Chassis: Stabilizes the flame pattern across the entire length of the heat exchanger to prevent hot spots.
• Enhanced Reliability: Manufactured to strict tolerances to eliminate common issues like resonance or lift-off during high-fire stages.

Is the 100187922 burner compatible with LP gas systems?
No, this specific assembly is configured for Natural Gas (NAT). Converting this burner requires a specific gas conversion kit and should not be attempted by swapping orifices alone.

Does this assembly include the pilot and igniter?
This is the final burner assembly. While it includes the 18-inch burner tube and #34 orifice, we recommend inspecting the pilot tubing and flame sensor for wear when performing this replacement.

What are the signs that this burner needs replacement?
Contractors should look for heavy scale buildup, clogged burner ports, or visible rust that disrupts the flame pattern, as these issues lead to carbon monoxide production and reduced efficiency.

Safety Notice:
?? California Proposition 65 Warning – This product contains materials known to the State of California to cause cancer and/or reproductive harm.

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.