
Lochinvar & A.O. Smith 100111657 Burner Assembly
The Lochinvar & A.O. Smith 100111657 Natural Burner Assembly is a precision-engineered replacement component designed for high-efficiency commercial and residential water heating systems. As the direct updated version for 9006990005, this assembly features a #30 ORF (orifice) specifically calibrated for natural gas combustion. Veteran technicians recognize this part as a critical OEM replacement burner for maintaining the narrow manifold pressure and flame stability required in modern FVIR (Flammable Vapor Ignition Resistant) water heaters. By ensuring a consistent modulating flame and proper air-fuel mixture, this assembly mitigates common issues like burner sooting, delayed ignition, and high-limit trips. Built with high-grade, thermal-stress-resistant materials, it provides the robust performance necessary for heavy-duty applications in schools, hospitals, and high-demand multi-family units. When replacing the 9006990005 burner assembly, always verify the orifice size and gas type to ensure safe, localized heat transfer within the combustion chamber.
Key Benefits:
- Direct OEM Replacement: Engineered specifically to replace the 9006990005 model with exact fitment for A.O. Smith and Lochinvar gas trains.
- Optimized Combustion: Features a factory-installed #30 natural gas orifice to maintain precise BTU input and minimize carbon monoxide emissions.
- Enhanced Durability: Constructed from heavy-duty materials that resist thermal oxidation and warping under high-cycling commercial conditions.
- System Efficiency: Restores the original burner assembly performance to improve temperature recovery times and fuel utilization.
Common Questions:
- Is this assembly compatible with LP units? No, the 100111657 is strictly for natural gas applications due to the #30 orifice sizing.
- Can I use this to replace the 9006990005? Yes, the 100111657 is the official manufacturer-recommended update for that part number.
- Does this include the pilot and igniter? This part is the main burner assembly; technicians should inspect the pilot tubing and electrode for wear during the swap.
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.
Original: $154.58
-65%$154.58
$54.10Lochinvar & A.O. Smith 100111657 Burner Assembly
The Lochinvar & A.O. Smith 100111657 Natural Burner Assembly is a precision-engineered replacement component designed for high-efficiency commercial and residential water heating systems. As the direct updated version for 9006990005, this assembly features a #30 ORF (orifice) specifically calibrated for natural gas combustion. Veteran technicians recognize this part as a critical OEM replacement burner for maintaining the narrow manifold pressure and flame stability required in modern FVIR (Flammable Vapor Ignition Resistant) water heaters. By ensuring a consistent modulating flame and proper air-fuel mixture, this assembly mitigates common issues like burner sooting, delayed ignition, and high-limit trips. Built with high-grade, thermal-stress-resistant materials, it provides the robust performance necessary for heavy-duty applications in schools, hospitals, and high-demand multi-family units. When replacing the 9006990005 burner assembly, always verify the orifice size and gas type to ensure safe, localized heat transfer within the combustion chamber.
Key Benefits:
- Direct OEM Replacement: Engineered specifically to replace the 9006990005 model with exact fitment for A.O. Smith and Lochinvar gas trains.
- Optimized Combustion: Features a factory-installed #30 natural gas orifice to maintain precise BTU input and minimize carbon monoxide emissions.
- Enhanced Durability: Constructed from heavy-duty materials that resist thermal oxidation and warping under high-cycling commercial conditions.
- System Efficiency: Restores the original burner assembly performance to improve temperature recovery times and fuel utilization.
Common Questions:
- Is this assembly compatible with LP units? No, the 100111657 is strictly for natural gas applications due to the #30 orifice sizing.
- Can I use this to replace the 9006990005? Yes, the 100111657 is the official manufacturer-recommended update for that part number.
- Does this include the pilot and igniter? This part is the main burner assembly; technicians should inspect the pilot tubing and electrode for wear during the swap.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Lochinvar & A.O. Smith 100111657 Natural Burner Assembly is a precision-engineered replacement component designed for high-efficiency commercial and residential water heating systems. As the direct updated version for 9006990005, this assembly features a #30 ORF (orifice) specifically calibrated for natural gas combustion. Veteran technicians recognize this part as a critical OEM replacement burner for maintaining the narrow manifold pressure and flame stability required in modern FVIR (Flammable Vapor Ignition Resistant) water heaters. By ensuring a consistent modulating flame and proper air-fuel mixture, this assembly mitigates common issues like burner sooting, delayed ignition, and high-limit trips. Built with high-grade, thermal-stress-resistant materials, it provides the robust performance necessary for heavy-duty applications in schools, hospitals, and high-demand multi-family units. When replacing the 9006990005 burner assembly, always verify the orifice size and gas type to ensure safe, localized heat transfer within the combustion chamber.
Key Benefits:
- Direct OEM Replacement: Engineered specifically to replace the 9006990005 model with exact fitment for A.O. Smith and Lochinvar gas trains.
- Optimized Combustion: Features a factory-installed #30 natural gas orifice to maintain precise BTU input and minimize carbon monoxide emissions.
- Enhanced Durability: Constructed from heavy-duty materials that resist thermal oxidation and warping under high-cycling commercial conditions.
- System Efficiency: Restores the original burner assembly performance to improve temperature recovery times and fuel utilization.
Common Questions:
- Is this assembly compatible with LP units? No, the 100111657 is strictly for natural gas applications due to the #30 orifice sizing.
- Can I use this to replace the 9006990005? Yes, the 100111657 is the official manufacturer-recommended update for that part number.
- Does this include the pilot and igniter? This part is the main burner assembly; technicians should inspect the pilot tubing and electrode for wear during the swap.
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.











