Lochinvar & A.O. Smith 100163214 Gasket

The Lochinvar & A. O. Smith 100163214 Gasket is a critical OEM replacement part designed for sealing the sight glass assembly in high-efficiency commercial boilers and water heaters. This sight glass gasket kit ensures a gastight, high-temperature seal, allowing technicians to safely monitor burner flame characteristics and combustion stability without risking flue gas leakage or vacuum loss. Manufactured to rigorous standards, this kit is specifically engineered for compatibility with Lochinvar Knight, Armor, and Crest series, as well as various A. O. Smith commercial units. Utilizing genuine 100163214 burner gaskets prevents common failure points such as "etching" or bypass leaks that occur when using inferior universal seals. Whether you are performing a annual boiler inspection or responding to a combustion chamber seal failure, this HVACR gasket kit provides the thermal resistance and compression set required for long-term reliability in pressurized heating environments.

Key Benefits for the Technician:

• Precision OEM Fit: Eliminates the guesswork associated with universal gaskets, ensuring the sight glass seats perfectly within the combustion chamber port.
• High-Temperature Durability: Constructed from advanced elastomer materials capable of withstanding the intense radiant heat of high-input gas-fired burners.
• System Safety: Prevents the escape of hazardous combustion byproducts and maintains the integrity of the boiler’s sealed combustion system.
• Complete Kit: Includes the necessary gaskets and sealing components to refresh the observation port during preventative maintenance.

Common Questions:

Which boiler models are compatible with the 100163214 kit?
This kit is validated for use across a wide range of Lochinvar FBN, FBL, and WHB models. As an A. O. Smith 100163214 cross-reference, it also fits many heavy-duty commercial volume water heaters. Always verify the part number against the unit’s specific parts list before installation.

Do I need to replace the gasket every time I remove the sight glass?
Yes. Veteran technicians recommend replacing the sight glass gasket whenever the assembly is disturbed. Once compressed and subjected to high-heat cycles, the gasket loses its ability to reform a perfect seal, increasing the risk of nuisance pressure switch trips or CO leaks.

What are the symptoms of a failing sight glass gasket?
Visible soot buildup around the observation port, whistling noises during burner ignition, or moisture/condensation behind the glass often indicate that the 100163214 seal has degraded and requires immediate replacement.

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.