Lochinvar & A.O. Smith 100277802 Gasket
The Lochinvar & A.O. Smith 100277802 Gasket is a critical gas/air manifold seal engineered specifically for high-efficiency commercial boilers and water heaters. As a direct OEM replacement part, this gasket ensures a combustion-tight seal between the blower assembly and the burner manifold, preventing hazardous gas leaks and maintaining precise fuel-to-air ratios. Given the thermal stresses in modulating condensing systems, this high-temperature manifold gasket is fabricated from durable, heat-resistant materials that resist degradation under constant cycling. Field technicians should verify 100277802 compatibility with Lochinvar Knight and A.O. Smith Cyclone models to ensure operational safety. Proper seated alignment of the burner mounting gasket is essential during routine heat exchanger maintenance to prevent CO leakage or erratic flame signals. Using authentic Lochinvar burner gaskets maintains the UL/CSA listing integrity of the appliance and ensures the manifold pressure remains within factory-specified tolerances for optimal combustion efficiency.
This item must ship via trucking. Please contact us for freight quote.
Key Benefits for the Contractor- Precision Fit: Designed to the exact dimensions of the gas/air manifold assembly for a leak-proof interface.
- Thermal Resilience: High-grade material prevents hardening and cracking in the high-heat zone of the burner door.
- Simplified Maintenance: Direct replacement design reduces labor time during annual teardowns and combustion analysis.
- System Integrity: Ensures accurate combustion blower performance by preventing secondary air infiltration.
When should the 100277802 gasket be replaced?
Standard service protocols dictate replacing the manifold gasket every time the burner is removed for inspection or if the existing seal shows signs of compression set, charring, or brittleness.
Can I use high-temp silicone instead of this OEM gasket?
No. Relying on RTV or liquid sealants on the gas/air manifold can lead to debris entering the burner ports or uneven sealing, potentially causing unsafe combustion or "fluttering" during ignition.
Is this part compatible with Lochinvar Knight (KB) and Crest models?
This gasket is used extensively across the Lochinvar and A.O. Smith commercial lines. Always verify the part number against the specific BTU input and serial number of your unit before installation.
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: $1,169.47
-65%$1,169.47
$409.31Lochinvar & A.O. Smith 100277802 Gasket
The Lochinvar & A.O. Smith 100277802 Gasket is a critical gas/air manifold seal engineered specifically for high-efficiency commercial boilers and water heaters. As a direct OEM replacement part, this gasket ensures a combustion-tight seal between the blower assembly and the burner manifold, preventing hazardous gas leaks and maintaining precise fuel-to-air ratios. Given the thermal stresses in modulating condensing systems, this high-temperature manifold gasket is fabricated from durable, heat-resistant materials that resist degradation under constant cycling. Field technicians should verify 100277802 compatibility with Lochinvar Knight and A.O. Smith Cyclone models to ensure operational safety. Proper seated alignment of the burner mounting gasket is essential during routine heat exchanger maintenance to prevent CO leakage or erratic flame signals. Using authentic Lochinvar burner gaskets maintains the UL/CSA listing integrity of the appliance and ensures the manifold pressure remains within factory-specified tolerances for optimal combustion efficiency.
This item must ship via trucking. Please contact us for freight quote.
Key Benefits for the Contractor- Precision Fit: Designed to the exact dimensions of the gas/air manifold assembly for a leak-proof interface.
- Thermal Resilience: High-grade material prevents hardening and cracking in the high-heat zone of the burner door.
- Simplified Maintenance: Direct replacement design reduces labor time during annual teardowns and combustion analysis.
- System Integrity: Ensures accurate combustion blower performance by preventing secondary air infiltration.
When should the 100277802 gasket be replaced?
Standard service protocols dictate replacing the manifold gasket every time the burner is removed for inspection or if the existing seal shows signs of compression set, charring, or brittleness.
Can I use high-temp silicone instead of this OEM gasket?
No. Relying on RTV or liquid sealants on the gas/air manifold can lead to debris entering the burner ports or uneven sealing, potentially causing unsafe combustion or "fluttering" during ignition.
Is this part compatible with Lochinvar Knight (KB) and Crest models?
This gasket is used extensively across the Lochinvar and A.O. Smith commercial lines. Always verify the part number against the specific BTU input and serial number of your unit before installation.
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 100277802 Gasket is a critical gas/air manifold seal engineered specifically for high-efficiency commercial boilers and water heaters. As a direct OEM replacement part, this gasket ensures a combustion-tight seal between the blower assembly and the burner manifold, preventing hazardous gas leaks and maintaining precise fuel-to-air ratios. Given the thermal stresses in modulating condensing systems, this high-temperature manifold gasket is fabricated from durable, heat-resistant materials that resist degradation under constant cycling. Field technicians should verify 100277802 compatibility with Lochinvar Knight and A.O. Smith Cyclone models to ensure operational safety. Proper seated alignment of the burner mounting gasket is essential during routine heat exchanger maintenance to prevent CO leakage or erratic flame signals. Using authentic Lochinvar burner gaskets maintains the UL/CSA listing integrity of the appliance and ensures the manifold pressure remains within factory-specified tolerances for optimal combustion efficiency.
This item must ship via trucking. Please contact us for freight quote.
Key Benefits for the Contractor- Precision Fit: Designed to the exact dimensions of the gas/air manifold assembly for a leak-proof interface.
- Thermal Resilience: High-grade material prevents hardening and cracking in the high-heat zone of the burner door.
- Simplified Maintenance: Direct replacement design reduces labor time during annual teardowns and combustion analysis.
- System Integrity: Ensures accurate combustion blower performance by preventing secondary air infiltration.
When should the 100277802 gasket be replaced?
Standard service protocols dictate replacing the manifold gasket every time the burner is removed for inspection or if the existing seal shows signs of compression set, charring, or brittleness.
Can I use high-temp silicone instead of this OEM gasket?
No. Relying on RTV or liquid sealants on the gas/air manifold can lead to debris entering the burner ports or uneven sealing, potentially causing unsafe combustion or "fluttering" during ignition.
Is this part compatible with Lochinvar Knight (KB) and Crest models?
This gasket is used extensively across the Lochinvar and A.O. Smith commercial lines. Always verify the part number against the specific BTU input and serial number of your unit before installation.
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.
