Ao Smith 100109326 Natural Gas Burner Assembly Kit

Product Description

The AO SMITH 100109326 is a natural gas final burner assembly kit designed for residential and light commercial water heating applications. This kit includes a 28-orifice burner configuration, providing the combustion assembly needed to restore proper heating function to a natural gas water heater. It is a direct-replacement component installed by licensed plumbers or HVAC technicians performing water heater service and repair. The assembly delivers consistent flame distribution across the burner surface, making it a reliable option for restoring a unit to factory-specified heating performance.

This burner assembly kit is suited for natural gas water heater systems in residential and light commercial settings. It is typically installed during a burner replacement service when the existing assembly shows signs of corrosion, damage, or failed ignition. Technicians performing routine water heater maintenance or post-inspection repairs will find this kit appropriate for restoring full combustion function. Always verify the orifice count and gas type match the existing installation before proceeding with replacement.

Key Features

• 28-orifice burner design for distributed flame coverage across the combustion surface
• Natural gas (NG) rated fuel type — not for use with propane or LP gas systems
• Complete assembly kit format simplifies replacement by supplying necessary burner components together
• Designed for heating applications in natural gas water heater systems

Compatibility

Designed as an OEM-style replacement natural gas burner assembly for compatible AO SMITH water heater models. Verify the 28-orifice specification and natural gas fuel type match your existing unit before installation.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC technician familiar with gas appliance service. Shut off the gas supply and allow the unit to cool completely before disassembling the burner compartment. Follow all applicable local codes and manufacturer instructions when connecting gas lines and reassembling the combustion chamber. Do not attempt to modify the orifice count or convert this assembly for use with liquefied petroleum gas.

Technical Specifications

• Fuel Type: Natural Gas (NG)
• Application: Heating
• Orifice Count: 28

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100109326