Williams 7726 Conversion Kit

The Williams 7726 is a professional-grade Natural to LP Gas Conversion Kit engineered specifically for the Williams 65086 Forsaire Furnace series. This 65,000 BTU gas conversion package includes the critical LP burner orifices, a liquid propane regulator spring, and high-integrity brass fittings required to re-jet the manifold for propane operation. Designed for Forsaire counterflow furnaces manufactured after 2013, the Williams 7726 kit ensures your equipment maintains a precise 11-inch water column inlet pressure for stable combustion and optimal thermal efficiency. As an OEM furnace gas conversion solution, it facilitates a seamless fuel transition without compromising the burner assembly’s structural integrity or the unit's safety controls. Contractors must verify the furnace serial number—specifically digits 3 and 4 for the manufacture year—to confirm compatibility with this LP gas conversion kit. Proper installation requires swapping the main burner orifices and adjusting the pilot surface to surround the generator tip for reliable ignition on propane gas systems.

Key Benefits

• Direct Compatibility: Exact OEM fit for Williams 65086 series Forsaire 65,000 BTU furnaces.
• Precision Metering: Includes LP orifices sized specifically to maintain factory-rated heating capacity on propane.
• Pressure Stability: Provides the correct propane regulator components to manage 11" W.C. inlet and manifold pressure.
• Durable Infrastructure: Features corrosion-resistant brass fittings and high-grade components for long-term field reliability.
• Complete Solution: Supplies all necessary hardware to transition from natural gas to liquid propane safely.

Common Questions

Can I use this kit on a Williams furnace manufactured before 2013?
This specific kit is validated for 65086 series models produced from 2013 onwards. For older units, check the serial number and consult the manufacturer, as internal valve configurations may vary.

Does this kit work for 50,000 BTU or 35,000 BTU models?
No, the Williams 7726 is calibrated strictly for 65,000 BTU input. Using these orifices in lower BTU units will cause over-firing and potential heat exchanger damage.

What is the required manifold pressure after installing this LP kit?
After conversion, the manifold pressure should be adjusted to 10.0" - 10.5" W.C., with a minimum inlet supply pressure of 11" W.C. as per technical specifications.

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.