Description
The NTI Boiler 6500991800 is a genuine OEM graphite gasket designed specifically for use with the flame probe assembly on NTI’s Ti series condensing boilers. Maintaining a proper seal at the flame probe is critical to safe, accurate combustion sensing — a compromised gasket can lead to flue gas leakage, sensor inaccuracy, and nuisance lockouts. This graphite gasket delivers the high-temperature resistance and compressibility needed to form a reliable, long-lasting seal in the demanding thermal environment of a condensing boiler combustion chamber.
Key Features
- Genuine NTI OEM replacement part — ensures proper fit and performance
- Graphite construction for superior high-temperature resistance and sealing integrity
- Designed for use with the Ti series flame probe assembly
- Helps prevent flue gas bypass and maintains accurate flame sensing
- Direct drop-in replacement — no modification required
Application
- Compatible with NTI Ti series condensing boilers
- Recommended for installation during flame probe service or replacement
- Ideal for use during annual boiler maintenance and tune-up
Why Replace the Flame Probe Gasket?
Over time, the gasket surrounding the flame probe can degrade due to repeated thermal cycling, leading to micro-leaks and unreliable flame signal readings. Replacing this gasket during routine service or whenever the flame probe is removed helps ensure combustion integrity, protects system efficiency, and supports safe boiler operation. Always use genuine NTI OEM parts to maintain warranty compliance and peak performance.
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