AO Smith 100112342 Final Burner Assembly NAT 16-Inch Orifice 37

Overview

The AO Smith 100112342 Final Burner Assembly NAT 16-Inch Orifice 37 is a genuine OEM replacement part designed for natural gas appliances that use a 16-inch burner configuration. Built to AO Smith engineering standards, this burner assembly features a calibrated #37 orifice to support steady flame characteristics and efficient fuel flow across typical operating ranges.

What you get and how it works

Replacing the final burner assembly can help restore even heat distribution and reliable ignition in compatible AO Smith systems. The 16-inch footprint fits specific burner housings, while the #37 orifice provides a measured opening that balances air and gas for efficient combustion under normal conditions. The construct uses heat-resistant materials intended to withstand regular heating cycles.

Key features

• Natural gas operation ( NAT )
• 16-inch burner size for compatible AO Smith setups
• #37 orifice for controlled fuel flow
• Durable construction designed for long service life
• OEM replacement part to maintain original performance

Real-world usage scenarios

• Replacing a worn or failing final burner in natural gas appliances
• Restoring consistent heat output and ignition reliability
• Maintaining original equipment performance without aftermarket substitutions

Installation considerations and tips

Before replacing, confirm that the part matches the model requirements and natural gas specification. This final burner assembly is designed for NAT gas and the 16-inch configuration. Handle with care, disconnect power and gas supply during service, and consult the installation manual for torque and alignment guidelines. If in doubt, seek professional assistance.

Compatibility and care

Using OEM components helps preserve system integrity and safety standards. Keep the area clean, inspect connections after installation, and perform periodic checks according to the appliance manufacturer's maintenance schedule.

Why choose OEM from AO Smith?

Choosing an original AO Smith burner assembly can help maintain the intended operation, flame stability, and compatibility with the brand's burner geometry, reducing the risk of misfit parts. The NAT and 16-inch design are part of AO Smith's standard approach to reliable heat generation.