Ao Smith 100223750 Burner Assembly Kit 20 in 29 Orifice Ng

Product Description

The AO SMITH 100223750 is a 20-inch final burner assembly kit designed as a direct replacement component for natural gas water heaters. This kit includes a 29-orifice burner assembly, providing the combustion surface required for proper heat transfer within the burner chamber. It is intended for use by licensed plumbers and HVAC technicians performing burner replacement or repair on compatible AO SMITH natural gas water heater units. The assembly restores proper ignition and flame distribution when the original burner is damaged, corroded, or otherwise worn beyond serviceable condition.

This burner assembly kit is suited for residential natural gas water heater applications. It is installed within the combustion chamber of the water heater and is sized at 20 inches to match specific tank configurations. Technicians should verify the orifice count and overall assembly length against the unit being serviced before installation. This part is identified as a replacement component, making it appropriate for service calls, warranty repairs, or maintenance rebuilds on qualifying AO SMITH water heater models.

Key Features

• 20-inch assembly length sized for specific natural gas water heater configurations
• 29-orifice design for even flame distribution across the burner surface
• Natural gas (NG) rated combustion assembly
• OEM-style replacement part for direct swap installation
• Restores proper burner function in worn or damaged combustion assemblies

Compatibility

Designed as an OEM-style replacement burner assembly for AO SMITH natural gas water heaters requiring a 20-inch final burner assembly with a 29-orifice configuration.

Installation Notes

Installation should be performed by a licensed plumber or qualified gas appliance technician in accordance with local codes and the applicable International Fuel Gas Code (IFGC). Shut off the gas supply and allow the water heater to cool completely before beginning any burner service work. Verify that the replacement assembly matches the orifice count, fuel type, and physical dimensions of the original part before installation. After reassembly, check all gas connections for leaks using an approved leak detection solution before returning the unit to service.

Technical Specifications

• Assembly Length: 20 inches
• Orifice Count: 29
• Fuel Type: Natural Gas (NG)
• Product Type: Burner Assembly Kit
• Application: Replacement Part

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100223750