Weil McLain 510-811-097 Kit

The Weil McLain 510-811-097 Kit is a critical field-service solution designed to facilitate the conversion of CGS3-6 gas boilers from liquid propane (LP) to natural gas (NAT). Built specifically for the Weil McLain CGS series, this OEM conversion kit ensures that the venturi-to-gas-valve ratio is perfectly calibrated for natural gas combustion. This kit includes the precision-machined gas boiler orifice and a dedicated LP to NAT conversion label set to maintain code compliance and system safety.

When executing a boiler fuel conversion, maintaining precise manifold pressure is essential for high-efficiency performance. Using the 510-811-097 components ensures that the natural gas conversion for CGS3-6 meets factory specifications, avoiding the risks of improper flame rectification or carbon buildup. This HVAC fuel conversion kit is the exact technician-specified part for the CGs-3, CGs-4, CGs-5, and CGs-6 models, ensuring seamless mechanical compatibility with existing burner manifolds and pilot assemblies without requiring extensive drilling or modifications.

• Ensures accurate natural gas combustion for optimal thermal transfer.
• Compatible with the full Weil-McLain CGS3-6 series range.
• Includes the necessary fuel-specific hardware to maintain BTU output consistency.
• OEM-certified parts prevent mechanical mismatched flow rates between the regulator and burners.

Is this kit compatible with CGi or CGa boiler models?
No, this kit is specifically engineered for the CGS (spark ignition) series. The venturi and orifice sizing are calibrated only for CGS3 through CGS-6 units.

What is the primary difference between the LP and NAT orifices in this kit?
Natural gas has a lower energy density than propane, requiring a larger orifice opening to allow the increased volume of fuel necessary to reach target thermal efficiency.

Does this kit include a new gas valve?
This kit typically includes the orifice and labels. The existing gas valve on a CGS series boiler is often a multi-fuel valve that requires adjustment/spring replacement; verify if your current valve model requires further internal modification beyond this kit.

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.