Lochinvar & A.O. Smith 100288908 Gasket

The Lochinvar & A.O. Smith 100288908 Gasket is a critical heat exchanger gasket set designed for commercial boiler maintenance and specialized pool heating applications. Featuring a 15 3/4" diameter, this high-performance hex burner gasket is engineered to ensure a gas-tight seal, preventing thermal bypass and maintaining peak combustion efficiency. This OEM replacement gasket kit is specifically compatible with Lochinvar AQUAS Low NOx indoor indirect pool heaters, including model series FTX400L, FTX400N, FTX500L, FTX500N, FTX600L, and FTX600N. In the field, technicians rely on the precision fit of the 100288908 to resolve pressure vessel leaks and restore structural integrity to the combustion chamber. When performing a teardown of the heat exchanger assembly, replacing these high-temperature seals is standard protocol to avoid nuisance lockouts or CO leakage. This A.O. Smith heat exchanger part is manufactured to rigorous tolerances, ensuring the thermal interface remains durable under high-cycling demands.

Key Benefits

• Precision Compatibility: Designed for an exact fit on Lochinvar AQUAS (FTX) 400, 500, and 600 models.
• Industrial-Grade Sealing: The 15.75-inch diameter ensures full coverage across the heat exchanger flange for reliable performance.
• Efficiency Restoration: Eliminates leaks at the burner interface, ensuring optimal Low NOx operation.
• OEM Reliability: Direct A.O. Smith/Lochinvar part 100288908 ensures material compatibility with high-temperature combustion environments.

Common Questions

• Does this kit include all necessary seals for a heat exchanger service? Yes, this gasket set is designed to provide the primary seals required when opening the heat exchanger on compatible FTX models.
• Is the 100288908 compatible with other Lochinvar boilers? While primarily used in AQUAS pool heaters, always verify your specific Lochinvar boiler parts list as heat exchanger diameters vary by BTU input.
• Why is this gasket 15 3/4 inches in diameter? This dimension is specifically calibrated for the larger combustion chambers found in the 400k through 600k BTU output units to ensure a comprehensive seal.

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.