Ao Smith 100111591 Burner Assembly Natural Gas 14 in

Product Description

The AO SMITH 100111591 is a 14-inch burner assembly designed for natural gas water heaters. It serves as a direct replacement component, delivering the combustion function at the heart of the water heating system. The assembly includes a 39 orifice, which meters gas flow to the burner for proper flame operation. This part is installed by licensed plumbers or water heater service technicians performing burner replacement on natural gas units.

This burner assembly is intended for use in natural gas water heater applications where the original burner has failed or requires replacement. It is sized at 14 inches and is suited for residential or light commercial water heater service. Technicians typically encounter this part during routine maintenance calls or when diagnosing combustion issues such as poor flame quality or ignition failure.

Key Features

• 14-inch assembly length sized for compatible natural gas water heater configurations
• Natural gas (NG) fuel type with 39 orifice for metered gas flow
• OEM-style replacement designed to restore original combustion performance
• Drop-in replacement reduces installation time during service calls

Compatibility

Designed as an OEM-style replacement burner assembly for natural gas water heaters requiring a 14-inch burner with a 39 orifice.

Installation Notes

Installation should be performed by a licensed plumber or qualified water heater technician. Shut off the gas supply valve and allow the unit to cool completely before removing the existing burner assembly. Follow local gas codes and the manufacturer service instructions when reconnecting the gas line and verifying flame operation after installation. Do not attempt to modify the orifice or alter the assembly for use with propane or other fuel types.

Technical Specifications

• Fuel Type: Natural Gas (NG)
• Orifice Size: 39
• Assembly Length: 14 inches
• Application: Replacement Part

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100111591