Ao Smith 100187919 Natural Gas Burner Assembly Kit

Product Description

The AO SMITH 100187919 is a natural gas final burner assembly kit designed for residential and light-commercial water heating applications. This assembly delivers the combustion component needed to ignite and sustain the burner flame within a natural gas water heater. At 16 inches in length and fitted with a 37-orifice configuration, it provides consistent fuel-air mixing and flame distribution across the burner surface. Licensed plumbers and HVAC technicians handling water heater service and replacement work are the primary installers of this component.

This burner assembly kit is intended for heating applications where the original burner has reached end of service life or has been damaged. The 16-inch form factor and 37-orifice spec make it a direct-fit replacement for compatible AO SMITH natural gas water heater units. It restores proper combustion performance without requiring modification to the existing gas valve, thermostat, or pilot assembly when installed in a correctly matched unit.

Key Features

• Natural gas configuration with 37-orifice burner design for even flame distribution
• 16-inch burner length sized for compatible AO SMITH water heater tanks
• Final burner assembly kit format includes the complete burner component for direct swap-out
• Designed for heating applications in residential and light-commercial water heater systems

Compatibility

Designed as an OEM-style replacement burner assembly for compatible AO SMITH natural gas water heaters requiring a 16-inch, 37-orifice burner unit.

Installation Notes

Installation should be performed by a licensed plumber or qualified gas appliance technician in accordance with local codes and the appliance manufacturer's service documentation. Shut off the gas supply and allow the unit to cool completely before disassembling the burner compartment. Inspect the gas supply line, thermocouple, and pilot assembly for wear before reinstalling the new burner. Do not modify the orifice or alter the burner geometry to fit a non-compatible unit.

Technical Specifications

• Fuel Type: Natural Gas
• Burner Length: 16 inches
• Orifice Count: 37
• Application: Heating

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100187919