Lochinvar & A.O. Smith 100109204 Burner Assembly

The Lochinvar & A.O. Smith 100109204 Burner Assembly is a precision-engineered OEM replacement part designed for high-efficiency natural gas water heaters and specific boiler applications. This NAT FV burner assembly features a factory-calibrated #31 orifice to ensure the correct BTU input and optimal combustion characteristics within the flammable vapor (FV) sealed chamber. As a seasoned technician knows, maintaining the integrity of the combustion cycle is critical; this genuine 100109204 burner kit replaces fouled or cracked burner heads that cause delayed ignition or poor flame patterns.

Constructed with durable materials to withstand high thermal cycling, this direct-fit burner assembly simplifies the swap-out process for field contractors. It is compatible with a wide range of A.O. Smith and Lochinvar units requiring a #31 drill size orifice. By restoring the precise fuel-to-air ratio, this final burner assembly helps eliminate carbon buildup and ensures your equipment operates at peak combustion efficiency. Always verify the manifold pressure and inspect the FV sensor when performing this installation to maintain system safety and performance.

• Precise Fuel Metering: Features a #31 orifice calibrated for natural gas to provide stable flame characteristics and consistent heat transfer.
• OEM Compatibility: Genuine Lochinvar and A.O. Smith 100109204 component ensures exact fitment and alignment within the combustion chamber.
• Enhanced Safety: Designed for Flammable Vapor Ignition Resistant (FVIR) systems to maintain sealed combustion integrity.
• Industrial Build Quality: High-grade stainless and alloy construction prevents premature warping and corrosive scaling.

What symptoms indicate the 100109204 burner assembly needs replacement?
Contractors often look for uneven flame color, significant soot accumulation on the burner head, or consistent ignition failures within the FV chamber.

Can this burner be converted to Propane (LP)?
No, this specific 100109204 assembly is strictly for natural gas applications only; using this assembly with LP gas will lead to hazardous combustion conditions.

Does this kit include the pilot or igniter?
This is the main burner assembly with the #31 orifice; verify your specific model requirements as secondary components like the pilot assembly are often sold separately or reused depending on their condition.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.