
Lochinvar & A.O. Smith 100265707 Burner Assembly
When you're dealing with a natural gas water heater that isn't maintaining consistent flame or efficient heat transfer, the Lochinvar & A.O. Smith 100265707 Burner Assembly is the exact OEM solution required for field restoration. This FBA N3 G40S40 NAT AL EXT assembly kit is specifically engineered for 18-inch diameter tanks, providing a precise fit for G40S40 models across the Lochinvar, A.O. Smith, State, and American Water Heater catalogs. As an all-in-one burner assembly kit, it includes the critical AL extension and is factory-balanced for optimal combustion efficiency and low emissions. This 100265707 replacement part eliminates the guesswork of off-brand components, ensuring the system meets original technical specifications for BTU input and air-fuel mixing. Whether you are replacing a corroded burner or managing a full combustion chamber overhaul, this genuine 100265707 burner assy provides the robust construction necessary to withstand high thermal stress in residential and commercial applications.
Key Benefits for Technicians:
- OEM Compatibility: Precision-fit for 18-inch diameter G40S40 natural gas water heaters.
- Integrated AL Extension: Pre-configured FBA N3 assembly includes the aluminum extension for immediate field installation.
- Enhanced Combustion: Engineered for efficient fuel utilization, reducing noise and carbon emissions.
- Durable Metallurgy: Built with high-grade materials to resist long-term thermal fatigue and oxidation.
Common Questions:
Which water heater models use the 100265707 burner?
This assembly is primarily designed for 40-gallon G40S40 natural gas units managed by A.O. Smith and Lochinvar. Always verify the tank diameter (18") and series before installation.
Is this a complete burner replacement kit?
Yes, it is a comprehensive Burner Assy kit (K, FBA, N3, G40S40, NAT AL EXT) designed to replace the entire burner structure within the combustion chamber.
Can this be used for Propane (LP) conversions?
No. This specific 100265707 model is strictly for Natural Gas applications. Converting fuel types requires a different orifice and assembly configuration.
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.
Original: $159.22
-65%$159.22
$55.73Lochinvar & A.O. Smith 100265707 Burner Assembly
When you're dealing with a natural gas water heater that isn't maintaining consistent flame or efficient heat transfer, the Lochinvar & A.O. Smith 100265707 Burner Assembly is the exact OEM solution required for field restoration. This FBA N3 G40S40 NAT AL EXT assembly kit is specifically engineered for 18-inch diameter tanks, providing a precise fit for G40S40 models across the Lochinvar, A.O. Smith, State, and American Water Heater catalogs. As an all-in-one burner assembly kit, it includes the critical AL extension and is factory-balanced for optimal combustion efficiency and low emissions. This 100265707 replacement part eliminates the guesswork of off-brand components, ensuring the system meets original technical specifications for BTU input and air-fuel mixing. Whether you are replacing a corroded burner or managing a full combustion chamber overhaul, this genuine 100265707 burner assy provides the robust construction necessary to withstand high thermal stress in residential and commercial applications.
Key Benefits for Technicians:
- OEM Compatibility: Precision-fit for 18-inch diameter G40S40 natural gas water heaters.
- Integrated AL Extension: Pre-configured FBA N3 assembly includes the aluminum extension for immediate field installation.
- Enhanced Combustion: Engineered for efficient fuel utilization, reducing noise and carbon emissions.
- Durable Metallurgy: Built with high-grade materials to resist long-term thermal fatigue and oxidation.
Common Questions:
Which water heater models use the 100265707 burner?
This assembly is primarily designed for 40-gallon G40S40 natural gas units managed by A.O. Smith and Lochinvar. Always verify the tank diameter (18") and series before installation.
Is this a complete burner replacement kit?
Yes, it is a comprehensive Burner Assy kit (K, FBA, N3, G40S40, NAT AL EXT) designed to replace the entire burner structure within the combustion chamber.
Can this be used for Propane (LP) conversions?
No. This specific 100265707 model is strictly for Natural Gas applications. Converting fuel types requires a different orifice and assembly configuration.
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.
Product Information
Product Information
Shipping & Returns
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Description
When you're dealing with a natural gas water heater that isn't maintaining consistent flame or efficient heat transfer, the Lochinvar & A.O. Smith 100265707 Burner Assembly is the exact OEM solution required for field restoration. This FBA N3 G40S40 NAT AL EXT assembly kit is specifically engineered for 18-inch diameter tanks, providing a precise fit for G40S40 models across the Lochinvar, A.O. Smith, State, and American Water Heater catalogs. As an all-in-one burner assembly kit, it includes the critical AL extension and is factory-balanced for optimal combustion efficiency and low emissions. This 100265707 replacement part eliminates the guesswork of off-brand components, ensuring the system meets original technical specifications for BTU input and air-fuel mixing. Whether you are replacing a corroded burner or managing a full combustion chamber overhaul, this genuine 100265707 burner assy provides the robust construction necessary to withstand high thermal stress in residential and commercial applications.
Key Benefits for Technicians:
- OEM Compatibility: Precision-fit for 18-inch diameter G40S40 natural gas water heaters.
- Integrated AL Extension: Pre-configured FBA N3 assembly includes the aluminum extension for immediate field installation.
- Enhanced Combustion: Engineered for efficient fuel utilization, reducing noise and carbon emissions.
- Durable Metallurgy: Built with high-grade materials to resist long-term thermal fatigue and oxidation.
Common Questions:
Which water heater models use the 100265707 burner?
This assembly is primarily designed for 40-gallon G40S40 natural gas units managed by A.O. Smith and Lochinvar. Always verify the tank diameter (18") and series before installation.
Is this a complete burner replacement kit?
Yes, it is a comprehensive Burner Assy kit (K, FBA, N3, G40S40, NAT AL EXT) designed to replace the entire burner structure within the combustion chamber.
Can this be used for Propane (LP) conversions?
No. This specific 100265707 model is strictly for Natural Gas applications. Converting fuel types requires a different orifice and assembly configuration.
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.












