A.o. Smith 100109318 Burner Assembly 51 Orifice Lp Gas

Product Description

The A.O. SMITH 100109318 is a burner assembly designed as a direct replacement for LP gas water heater applications. The assembly includes a 51-orifice configuration sized for liquefied petroleum gas and is installed within the combustion chamber of a gas-fired water heater. Licensed plumbers and gas appliance technicians are the typical installers. This part restores proper burner function when the original component has failed, worn, or been damaged, and it is intended to match the fit and function of the original factory-installed burner.

This burner assembly is used in residential and light commercial gas water heater systems operating on LP gas. It is suited for service replacement scenarios where the existing burner assembly has degraded combustion performance, visible damage, or failed inspection. Installers should confirm the orifice count and fuel type match the unit being serviced before ordering.

Key Features

• Configured for LP gas with a 51-orifice burner design
• OEM-style replacement for compatible A.O. SMITH water heater models
• Restores proper combustion performance in LP gas water heater systems
• Direct-fit replacement reduces modification during installation

Compatibility

Designed as an OEM-style LP gas burner assembly replacement for compatible A.O. SMITH gas-fired water heaters. Verify the fuel type and burner configuration against the original unit before installation.

Installation Notes

Installation should be performed by a licensed plumber or qualified gas appliance technician in accordance with local codes and the applicable sections of the International Fuel Gas Code (IFGC). Shut off the gas supply and allow the water heater to cool completely before beginning any service work. Confirm all gas connections are leak-tested with an approved solution after reassembly. Do not attempt installation without verifying that the replacement burner assembly matches the fuel type of the existing system.

Technical Specifications

• Fuel Type: LP Gas
• Orifice Count: 51
• Application: Replacement Part

Standard Information

• Brand: A.O. SMITH
• Manufacturer Part Number: 100109318