Ao Smith 100209980 Burner Assembly Kit 18 in Pdv Ng

Product Description

The AO SMITH 100209980 is an 18-inch natural gas final burner assembly kit designed for PDV-series water heater applications. This kit includes the burner assembly and a 34 orifice sized for natural gas service. It serves as a direct service replacement for the burner section of compatible PDV water heaters, restoring proper combustion function when the original assembly has worn or failed. Licensed plumbers and HVAC-R technicians typically handle this type of repair as part of a burner or combustion system service call.

This burner assembly kit is intended for heating applications in residential or light-commercial water heating systems running on natural gas. The PDV designation indicates compatibility with power-direct-vent water heater configurations. Installation is performed when the original burner assembly shows signs of degraded combustion, physical damage, or corrosion. The 18-inch sizing and 34 orifice specification are critical match points when selecting a replacement — confirm both against the existing unit before ordering.

Key Features

• 18-inch burner assembly sized for PDV-series water heaters
• Configured for natural gas (NG) fuel type
• 34 orifice included, matched to natural gas flow requirements
• OEM-style replacement kit restores original combustion performance
• Designed for heating applications in power-direct-vent water heater systems

Compatibility

Designed as an OEM-style replacement burner assembly kit for AO SMITH PDV-series natural gas water heaters requiring an 18-inch burner with a 34 orifice. Confirm size, fuel type, and orifice specification against the installed unit before replacing.

Installation Notes

This work should be performed by a licensed plumber or qualified gas appliance technician. Shut off the gas supply and allow the unit to cool completely before disassembling the burner compartment. Follow local codes and the manufacturer service documentation for proper burner seating, gas connection torque, and leak testing after reassembly. Always perform a combustion and leak check before returning the appliance to service.

Technical Specifications

• Fuel Type: Natural Gas (NG)
• Burner Size: 18 inches
• Orifice Size: 34
• Series: PDV
• Application: Heating
• Product Type: Burner Assembly Kit

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100209980