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The AO SMITH 100187931 is a natural gas final burner assembly kit designed for residential and light commercial water heating applications. This kit includes a 34-orifice burner assembly sized at 16 inches, providing the combustion hardware needed to restore proper heating function to a natural gas water heater. The assembly delivers consistent gas combustion performance and is intended as a direct OEM-style replacement component. Licensed plumbers and HVAC technicians handle this type of service work as part of routine burner replacement or water heater rehabilitation.
This burner assembly is engineered for natural gas (NG) heating systems. It is suited for water heater burner replacement scenarios where the original burner has degraded, suffered heat damage, or is no longer functioning within spec. The 16-inch sizing and 34-orifice configuration match specific AO SMITH water heater models, making it a targeted replacement for units requiring this assembly format. Installation is typically performed during a full burner service call or as part of a water heater repair rather than a full unit replacement.
Designed as an OEM-style replacement burner assembly for AO SMITH natural gas water heaters requiring a 16-inch, 34-orifice final burner assembly configuration.
This component should be installed by a licensed plumber or qualified gas appliance technician. Before beginning any burner replacement, shut off the gas supply at the service valve and allow the unit to cool completely. Verify the gas type and orifice configuration match the existing equipment before installation. Follow all applicable local gas codes and manufacturer service instructions throughout the repair procedure.
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