Lochinvar & A.O. Smith 100208091 Gasket Kit

The Lochinvar & A.O. Smith 100208091 Flame Sensor Gasket Kit is a critical OEM replacement part engineered for high-efficiency combustion system maintenance. This kit is designed to provide a high-temperature seal for the pilot and burner assembly across a broad range of condensing boilers and commercial water heaters. As a direct replacement for legacy part numbers GKT2450 and GKT2450K, it ensures proper atmospheric isolation, preventing the dangerous bypass of flue gases and maintaining stable pressure within the heat exchanger. For heating contractors servicing Lochinvar Knight (KBN), Power-Fin, and Efficiency+ models, replacing the flame sensor gasket during every electrode inspection is standard best practice to avoid intermittent flame rectification failures and "hard lockout" error codes. This 100208091 gasket is fabricated from specialized high-temperature gasket material to withstand the extreme thermal cycling inherent in modulating burner systems, ensuring long-term HVAC system reliability and peak thermal efficiency.

• Ensures a gas-tight seal for the pilot burner assembly to prevent carbon monoxide leakage and optimize combustion.
• Directly replaces obsolete part numbers GKT2450, GKT2450K, and 100146550 for seamless boiler repair.
• Compatible with a wide array of Lochinvar and A.O. Smith equipment, including KBN399 through KBN800 heating boilers.
• Essential for professional preventative maintenance to ensure accurate flame signal monitoring and prevent system downtime.

• When should the flame sensor gasket be replaced? Technicians should replace this gasket whenever the flame sensor is removed for cleaning or inspection to ensure the seal integrity is not compromised.
• Will this kit fix a "No Flame Sense" error? While the gasket itself provides the seal, a brittle or leaking gasket can lead to improper sensor positioning or air leaks that disrupt the flame signal.
• Is this part compatible with my specific KBN or AWN model? This kit is the standard OEM gasket replacement for almost all Lochinvar KBN, AWN, and WB series units utilizing a direct mount flame sensor.

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.