Ao Smith 100112275 Lp Final Burner Assembly Kit 14in 52 Orifice

Product Description

The AO SMITH 100112275 is an LP (liquid propane) final burner assembly kit designed for gas-fired water heater systems. This kit provides a complete burner assembly replacement, restoring proper combustion function in propane-fueled units. The assembly measures 14 inches in length and uses a 52-size orifice, which governs fuel flow and flame characteristics for correct BTU output. Licensed plumbers and gas technicians install this component during burner replacement service on residential or light-commercial water heaters.

This burner assembly kit is suited for propane-fueled AO SMITH water heater installations where the original burner has failed, corroded, or been damaged. The 14-inch burner length and 52 orifice sizing indicate a specific fit within the AO SMITH product line. Technicians typically source this kit as a direct OEM-style replacement to restore factory combustion performance without modifying the combustion chamber or gas valve assembly.

Key Features

• Configured for LP (liquid propane) fuel — not interchangeable with natural gas burner assemblies
• 14-inch burner length for precise fitment in compatible water heater combustion chambers
• 52-size orifice controls fuel metering for correct flame and heat output
• Complete kit format simplifies field replacement with necessary components included
• OEM part number ensures direct fit within the AO SMITH water heater lineup

Compatibility

Designed as an OEM-style replacement LP final burner assembly for AO SMITH gas-fired water heaters requiring a 14-inch burner with a 52 orifice. Consult the unit model label and AO SMITH parts documentation to confirm fitment before ordering.

Installation Notes

Installation must be performed by a licensed plumber or qualified gas technician in accordance with local codes and the International Fuel Gas Code (IFGC). Shut off the gas supply and allow the water heater to cool completely before disassembling the burner compartment. Inspect the gas valve, thermocouple, and manifold for wear while the burner is out of service. Verify LP fuel type on the unit rating plate before installing this assembly, as LP and natural gas burner components are not interchangeable.

Technical Specifications

• Fuel Type: LP (Liquid Propane)
• Burner Length: 14 inches
• Orifice Size: 52
• Component Type: Final Burner Assembly Kit

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100112275