Ao Smith 100109314 Burner Door Assembly Kit Natural Gas

Product Description

The AO SMITH 100109314 is an OEM burner door assembly kit designed for select residential natural gas water heaters. It seals the combustion chamber and supports proper burner operation, maintaining the integrity of the combustion zone during firing cycles. This is a factory-spec replacement part, meaning it matches original design tolerances for gasket fit, door alignment, and fastener placement. Licensed plumbers and water heater service technicians install this part when the existing burner door, gasket, or related components show wear, damage, or when combustion integrity cannot be restored through cleaning or adjustment alone.

This kit is intended for residential natural gas water heater applications where the burner door assembly requires replacement. It is an OEM component sourced directly from A. O. Smith, making it appropriate for service calls where non-OEM substitutes are not acceptable or where the original unit documentation calls out this specific part. Technicians working on A. O. Smith natural gas storage water heaters should verify the unit's parts list or service manual calls for part number 100109314 before ordering.

Key Features

• OEM burner door assembly kit for A. O. Smith natural gas water heaters
• Seals the combustion chamber for proper draft and burner performance
• Factory part number 100109314 ensures direct OEM fit
• Natural gas (NG) rated configuration
• Intended for trained service personnel following manufacturer service procedures

Compatibility

For A. O. Smith water heaters where the official parts list specifies part number 100109314. Use only on units identified by A. O. Smith documentation as compatible.

Installation Notes

Installation should be performed by a licensed plumber or qualified water heater service technician. Before beginning work, shut off the gas supply and allow the unit to cool completely. Follow the water heater service manual for door removal sequence, gasket seating, and fastener procedure. After reassembly, perform a combustion and leak check before returning the unit to service.

Technical Specifications

• Fuel Type: Natural Gas (NG)
• Part Type: OEM Burner Door Assembly Kit

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100109314