Lochinvar & A.O. Smith 100112274 Burner Assembly
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Lochinvar & A.O. Smith 100112274 Burner Assembly

Lochinvar & A.O. Smith 100112274 Burner Assembly

The Lochinvar & A.O. Smith 100112274 Burner Assembly is a critical OEM replacement part engineered for high-efficiency liquid propane (LP) residential water heaters. Featuring an 18-inch burner tube and a factory-calibrated #51 orifice, this assembly ensures precise gas-to-air mixing for a stable and clean flame pattern. This specific kit is frequently utilized in A.O. Smith ProLine and Lochinvar series, including models like the JW840S40P-AV 401. As a final burner assembly, it is designed to address common combustion chamber issues such as flame fluttering, soot accumulation, or ignition failure caused by compromised burner screens. For technicians, this 100112274 water heater burner provides a direct-fit solution that restores thermal efficiency and meets original manufacturer specifications without the need for field modifications. Replacing the entire LP gas burner unit is the industry standard for maintaining FVIR (Flammable Vapor Ignition Resistant) safety integrity in modern propane-fired units.

Key Benefits
  • Precision Metering: Includes a dedicated #51 orifice specifically sized for liquid propane applications to prevent over-firing.
  • Direct OEM Compatibility: Verified fit for high-volume 40-gallon and 50-gallon A.O. Smith, State, and Lochinvar water heaters.
  • Optimized Combustion: The 18-inch configuration ensures proper flame distribution across the combustion chamber floor for maximum heat transfer.
  • Safety Compliance: Restores factory-spec operation, essential for FVIR-compliant systems where damaged burner components can cause lockout issues.
Common Questions

Is this burner assembly compatible with Natural Gas units?
No, this assembly is strictly for liquid propane (LP) systems. Utilizing an LP burner in a Natural Gas application will lead to dangerous under-firing and carbon monoxide production.

Do I need to replace the orifice separately?
This 100112274 burner kit comes with the #51 orifice pre-installed. Always verify your specific model's manifold pressure requirements against the rating plate before installation.

What are the signs that a burner assembly needs replacement?
Common indicators include "pulsing" or "fluttering" flames, visible soot on the sight glass, or a tripped thermal switch within the combustion chamber usually caused by a torn burner screen.

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.

$184.73
Lochinvar & A.O. Smith 100112274 Burner Assembly
$184.73

Lochinvar & A.O. Smith 100112274 Burner Assembly

The Lochinvar & A.O. Smith 100112274 Burner Assembly is a critical OEM replacement part engineered for high-efficiency liquid propane (LP) residential water heaters. Featuring an 18-inch burner tube and a factory-calibrated #51 orifice, this assembly ensures precise gas-to-air mixing for a stable and clean flame pattern. This specific kit is frequently utilized in A.O. Smith ProLine and Lochinvar series, including models like the JW840S40P-AV 401. As a final burner assembly, it is designed to address common combustion chamber issues such as flame fluttering, soot accumulation, or ignition failure caused by compromised burner screens. For technicians, this 100112274 water heater burner provides a direct-fit solution that restores thermal efficiency and meets original manufacturer specifications without the need for field modifications. Replacing the entire LP gas burner unit is the industry standard for maintaining FVIR (Flammable Vapor Ignition Resistant) safety integrity in modern propane-fired units.

Key Benefits
  • Precision Metering: Includes a dedicated #51 orifice specifically sized for liquid propane applications to prevent over-firing.
  • Direct OEM Compatibility: Verified fit for high-volume 40-gallon and 50-gallon A.O. Smith, State, and Lochinvar water heaters.
  • Optimized Combustion: The 18-inch configuration ensures proper flame distribution across the combustion chamber floor for maximum heat transfer.
  • Safety Compliance: Restores factory-spec operation, essential for FVIR-compliant systems where damaged burner components can cause lockout issues.
Common Questions

Is this burner assembly compatible with Natural Gas units?
No, this assembly is strictly for liquid propane (LP) systems. Utilizing an LP burner in a Natural Gas application will lead to dangerous under-firing and carbon monoxide production.

Do I need to replace the orifice separately?
This 100112274 burner kit comes with the #51 orifice pre-installed. Always verify your specific model's manifold pressure requirements against the rating plate before installation.

What are the signs that a burner assembly needs replacement?
Common indicators include "pulsing" or "fluttering" flames, visible soot on the sight glass, or a tripped thermal switch within the combustion chamber usually caused by a torn burner screen.

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

Shipping & Returns

Description

The Lochinvar & A.O. Smith 100112274 Burner Assembly is a critical OEM replacement part engineered for high-efficiency liquid propane (LP) residential water heaters. Featuring an 18-inch burner tube and a factory-calibrated #51 orifice, this assembly ensures precise gas-to-air mixing for a stable and clean flame pattern. This specific kit is frequently utilized in A.O. Smith ProLine and Lochinvar series, including models like the JW840S40P-AV 401. As a final burner assembly, it is designed to address common combustion chamber issues such as flame fluttering, soot accumulation, or ignition failure caused by compromised burner screens. For technicians, this 100112274 water heater burner provides a direct-fit solution that restores thermal efficiency and meets original manufacturer specifications without the need for field modifications. Replacing the entire LP gas burner unit is the industry standard for maintaining FVIR (Flammable Vapor Ignition Resistant) safety integrity in modern propane-fired units.

Key Benefits
  • Precision Metering: Includes a dedicated #51 orifice specifically sized for liquid propane applications to prevent over-firing.
  • Direct OEM Compatibility: Verified fit for high-volume 40-gallon and 50-gallon A.O. Smith, State, and Lochinvar water heaters.
  • Optimized Combustion: The 18-inch configuration ensures proper flame distribution across the combustion chamber floor for maximum heat transfer.
  • Safety Compliance: Restores factory-spec operation, essential for FVIR-compliant systems where damaged burner components can cause lockout issues.
Common Questions

Is this burner assembly compatible with Natural Gas units?
No, this assembly is strictly for liquid propane (LP) systems. Utilizing an LP burner in a Natural Gas application will lead to dangerous under-firing and carbon monoxide production.

Do I need to replace the orifice separately?
This 100112274 burner kit comes with the #51 orifice pre-installed. Always verify your specific model's manifold pressure requirements against the rating plate before installation.

What are the signs that a burner assembly needs replacement?
Common indicators include "pulsing" or "fluttering" flames, visible soot on the sight glass, or a tripped thermal switch within the combustion chamber usually caused by a torn burner screen.

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.