Williams K000851 Burner

The Williams K000851 Burner is a precision-engineered OEM replacement burner specifically designed for Williams Vented Hearth Heaters and Monterey Series furnaces. As a critical component of the combustion assembly, this multi-slot burner ensures a stable, clean blue flame for optimal thermal efficiency and safety in gravity-vented wall heaters. It is commonly utilized in enclosed front 2001A models and serves as a primary component in gas conversion kits when transitioning between natural gas and liquid propane (LP).

For technicians performing a field service or a furnace burner replacement, the K000851 provides an exact fit, maintaining the required manifold pressure—typically 4.0" W.C. for natural gas or 10.0" W.C. for propane. This part is compatible with the Williams 6003 gas valve and is frequently paired with the P501618 pilot assembly and P500086 orifice fittings. Prioritizing the use of genuine Williams furnace parts ensures the combustion process remains within the manufacturer’s specified input ratings, preventing issues with under-firing or hazardous carbon monoxide production.

• Direct OEM Compatibility: Engineered for a seamless fit in Williams Monterey furnaces and Vented Room Heaters, reducing diagnostic and installation labor.
• Broad Model Support: Engineered for use in 2001, 3501, 5001, and 6501 series enclosed front and fireplace front models.
• Burner Port Precision: The multi-slot design promotes balanced gas flow and ignition reliability, even in high-altitude environments when used with appropriate orifices.
• High-Temperature Durability: Constructed from heavy-duty materials to withstand the thermal stress of continuous heating cycles without warping.

• Is this burner compatible with all gas valves? No, this unit is specifically designed to work with Williams gas valve 6003. It should not be used with Robertshaw or other third-party valves.
• Can I use the K000851 for an LP conversion? Yes, this burner is used in both Natural Gas to LP and LP to Natural Gas conversion kits, provided the correct burner orifices and regulator springs are installed.
• Why is my burner flame yellow or roaring? A yellow flame often indicates improper gas pressure or a dirty burner. Verify the manifold pressure with a manometer and ensure the burner ports are free of debris.

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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.