Lochinvar & A.O. Smith 100078772 Gasket
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Lochinvar & A.O. Smith 100078772 Gasket

Lochinvar & A.O. Smith 100078772 Gasket

The Lochinvar & A.O. Smith 100078772 Gasket is a critical high-temperature seal engineered specifically for flame rod assemblies in commercial and residential heating systems. Constructed from .04-inch graphite, this OEM component provides the thermal resilience required to maintain a gas-tight seal at the combustion chamber interface. A compromised flame rod gasket can lead to air infiltration or premature sensor failure, directly impacting the precision of flame rectification signals sent to the ignition control board. Replacing a worn gasket during routine HVAC preventative maintenance prevents nuisance lockouts and ensures the flame sensor remains correctly positioned for optimal ion detection.

Designed for exact fitment, the 100078772 is a direct replacement for A.O. Smith water heaters and Lochinvar boilers utilizing specialized electrode mounting. Unlike generic alternatives, this graphite flame sensor gasket is built to withstand extreme cycling without losing structural integrity or causing electrode grounding issues. For technicians servicing high-efficiency units, verifying the OEM part number is essential to ensure the sealing face matches the flange specifications of the burner plate. This component is vital for contractors performing commercial boiler repair where rigorous safety and performance standards are mandatory.

Key Benefits
  • Graphite Construction: Provides superior heat resistance and durability for long-term sealing in combustion environments.
  • Precise Rectification: Maintains the exact positioning needed for the flame rod to accurately detect flame presence.
  • System Safety: Prevents hazardous gas leaks and air bypass at the combustion chamber mounting point.
  • OEM Engineering: Guaranteed compatibility with specific Lochinvar and A.O. Smith commercial heating hardware.
Common Questions

When should I replace the flame rod gasket?
Replace the 100078772 gasket whenever the flame rod is removed for cleaning or inspection, or if signs of thermal degradation and compression set are visible on the graphite seal.

Will this gasket fit other flame sensor brands?
This part is specifically engineered for Lochinvar and A.O. Smith systems. To ensure proper sealing and compatibility, always match the part number to your specific model's manual before installation.

Is the .04" thickness critical?
Yes, the thickness ensures the flame sensor electrode is seated at the correct depth within the flame envelope, preventing flame signal dropouts or electrode damage.

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.

$9.34

Original: $26.69

-65%
Lochinvar & A.O. Smith 100078772 Gasket

$26.69

$9.34

Lochinvar & A.O. Smith 100078772 Gasket

The Lochinvar & A.O. Smith 100078772 Gasket is a critical high-temperature seal engineered specifically for flame rod assemblies in commercial and residential heating systems. Constructed from .04-inch graphite, this OEM component provides the thermal resilience required to maintain a gas-tight seal at the combustion chamber interface. A compromised flame rod gasket can lead to air infiltration or premature sensor failure, directly impacting the precision of flame rectification signals sent to the ignition control board. Replacing a worn gasket during routine HVAC preventative maintenance prevents nuisance lockouts and ensures the flame sensor remains correctly positioned for optimal ion detection.

Designed for exact fitment, the 100078772 is a direct replacement for A.O. Smith water heaters and Lochinvar boilers utilizing specialized electrode mounting. Unlike generic alternatives, this graphite flame sensor gasket is built to withstand extreme cycling without losing structural integrity or causing electrode grounding issues. For technicians servicing high-efficiency units, verifying the OEM part number is essential to ensure the sealing face matches the flange specifications of the burner plate. This component is vital for contractors performing commercial boiler repair where rigorous safety and performance standards are mandatory.

Key Benefits
  • Graphite Construction: Provides superior heat resistance and durability for long-term sealing in combustion environments.
  • Precise Rectification: Maintains the exact positioning needed for the flame rod to accurately detect flame presence.
  • System Safety: Prevents hazardous gas leaks and air bypass at the combustion chamber mounting point.
  • OEM Engineering: Guaranteed compatibility with specific Lochinvar and A.O. Smith commercial heating hardware.
Common Questions

When should I replace the flame rod gasket?
Replace the 100078772 gasket whenever the flame rod is removed for cleaning or inspection, or if signs of thermal degradation and compression set are visible on the graphite seal.

Will this gasket fit other flame sensor brands?
This part is specifically engineered for Lochinvar and A.O. Smith systems. To ensure proper sealing and compatibility, always match the part number to your specific model's manual before installation.

Is the .04" thickness critical?
Yes, the thickness ensures the flame sensor electrode is seated at the correct depth within the flame envelope, preventing flame signal dropouts or electrode damage.

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 100078772 Gasket is a critical high-temperature seal engineered specifically for flame rod assemblies in commercial and residential heating systems. Constructed from .04-inch graphite, this OEM component provides the thermal resilience required to maintain a gas-tight seal at the combustion chamber interface. A compromised flame rod gasket can lead to air infiltration or premature sensor failure, directly impacting the precision of flame rectification signals sent to the ignition control board. Replacing a worn gasket during routine HVAC preventative maintenance prevents nuisance lockouts and ensures the flame sensor remains correctly positioned for optimal ion detection.

Designed for exact fitment, the 100078772 is a direct replacement for A.O. Smith water heaters and Lochinvar boilers utilizing specialized electrode mounting. Unlike generic alternatives, this graphite flame sensor gasket is built to withstand extreme cycling without losing structural integrity or causing electrode grounding issues. For technicians servicing high-efficiency units, verifying the OEM part number is essential to ensure the sealing face matches the flange specifications of the burner plate. This component is vital for contractors performing commercial boiler repair where rigorous safety and performance standards are mandatory.

Key Benefits
  • Graphite Construction: Provides superior heat resistance and durability for long-term sealing in combustion environments.
  • Precise Rectification: Maintains the exact positioning needed for the flame rod to accurately detect flame presence.
  • System Safety: Prevents hazardous gas leaks and air bypass at the combustion chamber mounting point.
  • OEM Engineering: Guaranteed compatibility with specific Lochinvar and A.O. Smith commercial heating hardware.
Common Questions

When should I replace the flame rod gasket?
Replace the 100078772 gasket whenever the flame rod is removed for cleaning or inspection, or if signs of thermal degradation and compression set are visible on the graphite seal.

Will this gasket fit other flame sensor brands?
This part is specifically engineered for Lochinvar and A.O. Smith systems. To ensure proper sealing and compatibility, always match the part number to your specific model's manual before installation.

Is the .04" thickness critical?
Yes, the thickness ensures the flame sensor electrode is seated at the correct depth within the flame envelope, preventing flame signal dropouts or electrode damage.

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.