Ao Smith 100265721 Flue Baffle Kit Natural Gas

Product Description

The AO SMITH 100265721 is a flue baffle assembly kit designed for use with natural gas water heaters in the FDG50T40 series. This kit provides the internal flue baffle components necessary to maintain proper combustion flue gas flow and heat transfer efficiency within the water heater tank assembly. Constructed with aluminum exterior components, it is an OEM-style replacement part intended for installation by licensed plumbers and water heater service technicians working on AO SMITH residential gas water heater units.

This flue baffle kit is suited for residential natural gas water heater service and maintenance applications. It is specifically referenced for the FDG50T40 model series and N3 designation within the AO SMITH product line. Technicians performing annual maintenance, efficiency restoration, or post-inspection repairs will find this kit applicable when the factory flue baffle assembly requires replacement due to corrosion, physical damage, or loss of original fitment integrity.

Key Features

• Aluminum exterior construction for corrosion resistance in flue gas environments
• Designed for natural gas water heater applications
• OEM-referenced kit format includes necessary baffle components for complete replacement
• Compatible with FDG50T40 series AO SMITH water heaters

Compatibility

This kit is referenced for the AO SMITH FDG50T40 series natural gas water heaters with N3 designation. No additional compatible model numbers were provided in the product data.

Installation Notes

Installation should be performed by a licensed plumber or qualified water heater service technician. Before servicing, shut off the gas supply and allow the unit to cool completely. Follow all applicable local codes and manufacturer service documentation when accessing the flue assembly. Do not restore gas supply or relight the pilot until the baffle kit is fully seated and the flue access is properly resealed.

Technical Specifications

• Fuel Type: Natural Gas
• Exterior Material: Aluminum
• Series: FDG50T40
• Designation: N3

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100265721