Ao Smith 100187922 Final Burner Assembly Kit Natural Gas

Product Description

The AO SMITH 100187922 is a final burner assembly kit designed for natural gas water heaters. It provides the combustion components needed to restore proper burner function at the base of the heat exchanger assembly. This kit includes the final burner section and a 34 orifice, sized at 18 inches to match OEM dimensions. It is intended for installation by licensed plumbers or water heater service technicians performing burner section replacement on compatible AO SMITH natural gas units.

This assembly kit is used in residential natural gas water heater applications where the final burner section has failed, corroded, or been damaged. The 18-inch length and 34 orifice sizing are matched to specific AO SMITH tank configurations. Installation is appropriate for service calls involving incomplete combustion, burner degradation, or scheduled maintenance requiring burner replacement.

Key Features

• Final burner assembly sized at 18 inches for OEM fitment
• Configured for natural gas fuel type
• 34 orifice included for proper gas metering
• Kit format includes components needed for complete burner section replacement
• OEM-matched design for reliable combustion performance

Compatibility

Designed as an OEM-style replacement final burner assembly for AO SMITH natural gas water heaters requiring an 18-inch final burner section with a 34 orifice. Verify unit model and burner length before installation.

Installation Notes

This component should be installed by a licensed plumber or qualified gas appliance technician. Shut off the gas supply and allow the unit to cool completely before beginning any burner section service. Work must comply with local gas codes and applicable sections of the International Fuel Gas Code. Do not attempt to modify the orifice or burner assembly outside of manufacturer specifications.

Technical Specifications

• Fuel Type: Natural Gas
• Burner Length: 18 inches
• Orifice Size: 34
• Kit Type: Final Burner Assembly

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100187922