Lochinvar & A.O. Smith 100093992 Burner Assembly

The Lochinvar & A.O. Smith 100093992 Burner Assembly is a precision-engineered OEM replacement part designed for high-efficiency natural gas (NG) water heaters and commercial boilers. As a NAT Final Burner Assembly, this component is critical for maintaining the correct fuel-to-air ratio required for clean combustion and stable flame patterns. Utilizing a genuine 100093992 burner ensures that the appliance maintains its original thermal efficiency ratings and structural integrity. For technicians performing HVAC burner maintenance, this assembly provides a direct-fit solution that eliminates the common alignment and ignition issues associated with generic aftermarket components. Specifically validated for use in various Lochinvar and A.O. Smith systems, it supports consistent heat transfer and reduces NOx emissions. When troubleshooting water heater burner replacement needs, verify that the existing orifice and manifold pressure settings align with the technical specifications of this natural gas burner to ensure safe and reliable ignition across all firing cycles.

Key Benefits for Contractors

• OEM Compatibility: Precision-manufactured to match Lochinvar & A.O. Smith factory tolerances for a seamless swap-out.
• Optimized Combustion: Designed to prevent carbon buildup and soot, protecting the heat exchanger from premature fouling.
• Direct-Fit Installation: Reduces labor time during gas burner repair by utilizing standard mounting points and connections.
• Natural Gas Specific: Engineered specifically for NG combustion systems, ensuring the proper port geometry for natural gas flow rates.

Common Technical Questions

Is this burner assembly compatible with propane (LP) units?
No, the 100093992 is strictly designed for natural gas water heaters. Using this assembly with liquid propane can result in improper combustion and hazardous operating conditions.

When should a technician replace the NAT Final Burner Assembly?
Replacement is recommended if the ports are heavily oxidized, the burner surface is warped, or if delayed ignition is observed during the sequence of operation that cannot be resolved through cleaning.

Does this assembly include the pilot or igniter?
This is the final burner assembly; technicians should inspect the existing pilot tubing and electrode to ensure they are compatible and in good working order before completing the installation.

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.