Lochinvar & A.O. Smith 100145466 Tile

Professional contractors recognize that high-efficiency combustion requires a perfectly sealed chamber. The Lochinvar & A.O. Smith 100145466 Rear Head Side Heat Tile is a high-density ceramic fiberboard insulation component specifically engineered for Lochinvar Copper-Fin II and A.O. Smith HWB/HW commercial boilers and water heaters. As a veteran-grade OEM replacement part, it ensures the rear head section of the heat exchanger maintains critical thermal barriers, preventing energy loss and protecting the chassis from extreme operational temperatures. This refractory tile is designed to withstand the intense thermal cycling typical in hydronic heating systems, providing long-term structural integrity where aftermarket alternatives often fail.

Properly maintaining the combustion chamber insulation with this authentic 100145466 tile is essential for meeting thermal efficiency ratings and ensuring clean ignition. This part is a direct fit for the "all" models designation in many Copper-Fin series parts lists, including models 497, 647, and 747. When the existing liner shows signs of cracking or crumbling, replacing it with the Lochinvar 100145466 is necessary to prevent hot spots and maintain the precise air/fuel mixture required by the Smart System control module.

• Precision Thermal Barrier: Maintains consistent internal chamber temperatures for 85% or higher thermal efficiency.
• OEM Compatibility: Specifically designed for the rear head side of Copper-Fin II and A.O. Smith commercial units.
• High-Temperature Resistance: Constructed from professional-grade ceramic fiber to resist degradation under constant firing.
• Enhanced Safety: Protects external jacket assemblies and sensitive control components from heat damage.

Common Questions

Is this tile compatible with all Copper-Fin II models?
Yes, the 100145466 is listed as the standard rear head side tile for the majority of the Copper-Fin II series, though we recommend verifying your specific serial number for the exact insulation kit layout.

Should I replace all tiles if only one is cracked?
While you can replace individual tiles, technicians often inspect the entire chamber liner. If the rear head side tile is failing, other insulation components like the front door or bottom tiles may also be near their service limit.

Does this part include the mounting hardware or adhesive?
This is the individual insulating tile. Depending on your specific boiler orientation and series, you may need high-temperature refractory cement or specific clips for a complete installation.

This item is not eligible for free shipping.

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.