Lochinvar & A.O. Smith 100187920 Burner Assembly
HomeStore

Lochinvar & A.O. Smith 100187920 Burner Assembly

Lochinvar & A.O. Smith 100187920 Burner Assembly

The Lochinvar & A.O. Smith 100187920 Burner Assembly is a critical OEM replacement component designed for high-efficiency gas-fired boilers and residential or commercial water heaters. This 16-inch burner assembly features a precision-engineered #51 orifice (ORF) optimized for Propane (LP) or Natural Gas applications, depending on your specific unit configuration. As a veteran-grade part, it ensures the proper air-gas mixture required for clean combustion and stable flame patterns, preventing the typical soot buildup or irregular firing associated with worn-out burner heads. Known as the final burner assembly kit, this component is frequently specified for A.O. Smith 40-gallon Series 401 units and corresponding Lochinvar heating systems. By maintaining an accurate BTU output and supporting the Outdoor Reset Feature (ORF) for improved energy management, this assembly helps technicians restore factory-spec cycles and operational safety to the appliance's heat exchanger.

Key Benefits for Contractors
  • Genuine OEM Compatibility: Direct replacement for A.O. Smith 100187920 and Lochinvar burner assembly part numbers, ensuring a drop-in fit without field modifications.
  • Optimized Combustion: The factory-installed #51 orifice provides standardized gas flow and pressure (51 PSI rating) for consistent ignition.
  • Durable Construction: Built to withstand high-temperature thermal cycling within the combustion chamber, extending the service life of the HVAC equipment.
  • Performance Restoration: Essential for resolving common failure codes related to burner resonance, lifting flames, or incomplete combustion.
Common Questions & Technical Support

What model series is the 100187920 compatible with?
This assembly is primarily designed for A.O. Smith G640T40P-AV 401 and AV40TP water heaters, as well as specific Lochinvar boiler models. Always verify the serial number on the unit's rating plate to confirm the exact orifice and burner length match.

Can this burner be used for both Natural Gas and Propane?
While the assembly design is consistent, the #51 orifice is technically calibrated for specific gas types (often Propane/LP in this configuration). Consult the manufacturer’s data plate on your equipment to ensure the BTU rating and gas supply pressure match the 100187920 specifications.

When should a burner assembly be replaced rather than cleaned?
Technicians should replace the assembly if there is visible warping of the burner head, cracks in the metal, or if the #51 orifice has become obstructed by non-removable deposits that affect the flame pattern and safety triggers.

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.

$192.46
Lochinvar & A.O. Smith 100187920 Burner Assembly
$192.46

Lochinvar & A.O. Smith 100187920 Burner Assembly

The Lochinvar & A.O. Smith 100187920 Burner Assembly is a critical OEM replacement component designed for high-efficiency gas-fired boilers and residential or commercial water heaters. This 16-inch burner assembly features a precision-engineered #51 orifice (ORF) optimized for Propane (LP) or Natural Gas applications, depending on your specific unit configuration. As a veteran-grade part, it ensures the proper air-gas mixture required for clean combustion and stable flame patterns, preventing the typical soot buildup or irregular firing associated with worn-out burner heads. Known as the final burner assembly kit, this component is frequently specified for A.O. Smith 40-gallon Series 401 units and corresponding Lochinvar heating systems. By maintaining an accurate BTU output and supporting the Outdoor Reset Feature (ORF) for improved energy management, this assembly helps technicians restore factory-spec cycles and operational safety to the appliance's heat exchanger.

Key Benefits for Contractors
  • Genuine OEM Compatibility: Direct replacement for A.O. Smith 100187920 and Lochinvar burner assembly part numbers, ensuring a drop-in fit without field modifications.
  • Optimized Combustion: The factory-installed #51 orifice provides standardized gas flow and pressure (51 PSI rating) for consistent ignition.
  • Durable Construction: Built to withstand high-temperature thermal cycling within the combustion chamber, extending the service life of the HVAC equipment.
  • Performance Restoration: Essential for resolving common failure codes related to burner resonance, lifting flames, or incomplete combustion.
Common Questions & Technical Support

What model series is the 100187920 compatible with?
This assembly is primarily designed for A.O. Smith G640T40P-AV 401 and AV40TP water heaters, as well as specific Lochinvar boiler models. Always verify the serial number on the unit's rating plate to confirm the exact orifice and burner length match.

Can this burner be used for both Natural Gas and Propane?
While the assembly design is consistent, the #51 orifice is technically calibrated for specific gas types (often Propane/LP in this configuration). Consult the manufacturer’s data plate on your equipment to ensure the BTU rating and gas supply pressure match the 100187920 specifications.

When should a burner assembly be replaced rather than cleaned?
Technicians should replace the assembly if there is visible warping of the burner head, cracks in the metal, or if the #51 orifice has become obstructed by non-removable deposits that affect the flame pattern and safety triggers.

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 100187920 Burner Assembly is a critical OEM replacement component designed for high-efficiency gas-fired boilers and residential or commercial water heaters. This 16-inch burner assembly features a precision-engineered #51 orifice (ORF) optimized for Propane (LP) or Natural Gas applications, depending on your specific unit configuration. As a veteran-grade part, it ensures the proper air-gas mixture required for clean combustion and stable flame patterns, preventing the typical soot buildup or irregular firing associated with worn-out burner heads. Known as the final burner assembly kit, this component is frequently specified for A.O. Smith 40-gallon Series 401 units and corresponding Lochinvar heating systems. By maintaining an accurate BTU output and supporting the Outdoor Reset Feature (ORF) for improved energy management, this assembly helps technicians restore factory-spec cycles and operational safety to the appliance's heat exchanger.

Key Benefits for Contractors
  • Genuine OEM Compatibility: Direct replacement for A.O. Smith 100187920 and Lochinvar burner assembly part numbers, ensuring a drop-in fit without field modifications.
  • Optimized Combustion: The factory-installed #51 orifice provides standardized gas flow and pressure (51 PSI rating) for consistent ignition.
  • Durable Construction: Built to withstand high-temperature thermal cycling within the combustion chamber, extending the service life of the HVAC equipment.
  • Performance Restoration: Essential for resolving common failure codes related to burner resonance, lifting flames, or incomplete combustion.
Common Questions & Technical Support

What model series is the 100187920 compatible with?
This assembly is primarily designed for A.O. Smith G640T40P-AV 401 and AV40TP water heaters, as well as specific Lochinvar boiler models. Always verify the serial number on the unit's rating plate to confirm the exact orifice and burner length match.

Can this burner be used for both Natural Gas and Propane?
While the assembly design is consistent, the #51 orifice is technically calibrated for specific gas types (often Propane/LP in this configuration). Consult the manufacturer’s data plate on your equipment to ensure the BTU rating and gas supply pressure match the 100187920 specifications.

When should a burner assembly be replaced rather than cleaned?
Technicians should replace the assembly if there is visible warping of the burner head, cracks in the metal, or if the #51 orifice has become obstructed by non-removable deposits that affect the flame pattern and safety triggers.

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.

Lochinvar & A.O. Smith 100187920 Burner Assembly | GSIstore