A.o. Smith 100109316 Burner Assembly 33 Orifice Natural Gas

Product Description

The A.O. SMITH 100109316 is a natural gas burner assembly designed for use in commercial or residential water heater systems. This assembly includes a 33-orifice configuration, which distributes the gas flame evenly across the burner surface for consistent combustion performance. It serves as a direct replacement component for technicians servicing A.O. Smith water heaters. Installation is performed by licensed plumbers or HVAC-R technicians during routine maintenance or burner failure repairs. The orifice count indicates this is a multi-port burner, typical of larger-capacity storage water heater units that require uniform heat distribution across a wide combustion chamber.

This burner assembly is suited for natural gas-fired water heater applications. The 33-orifice design is commonly found in commercial-grade or high-input residential water heaters where broad flame coverage is required. Technicians replacing a failed or degraded burner assembly will find this part appropriate for water heaters originally equipped with this configuration. Installation scenarios typically involve accessing the combustion chamber after draining and isolating the unit from gas and water supply.

Key Features

• 33-orifice configuration provides uniform flame distribution across the burner surface
• Designed for natural gas fuel systems
• OEM-style replacement for A.O. Smith water heater burner assemblies
• Multi-port burner design supports consistent combustion in larger-capacity units
• Direct-fit replacement reduces installation time and calibration effort

Compatibility

Designed as an OEM-style replacement burner assembly for A.O. Smith natural gas water heaters equipped with a 33-orifice burner configuration.

Installation Notes

This component should be installed by a licensed plumber or gas appliance technician in accordance with local codes and the International Fuel Gas Code (IFGC). Always shut off the gas supply at the service valve and allow the unit to cool completely before accessing the combustion chamber. Verify the replacement assembly matches the orifice count and gas type of the original burner before installation. Do not attempt to modify orifice sizing or burner configuration in the field.

Technical Specifications

• Fuel Type: Natural Gas
• Orifice Count: 33

Standard Information

• Brand: A.O. SMITH
• Manufacturer Part Number: 100109316