Weil McLain 510-811-356 Conversion Kit

The Weil McLain 510-811-356 Conversion Kit is a specialized OEM boiler part engineered to transition CGa 25-6 gas boilers from Liquid Propane (LP) to Natural Gas. Specifically designed for standing pilot ignition systems, this kit includes the calibrated natural gas pilot orifice and main burner components necessary to modify the fuel delivery system for safe, efficient operation. In the field, utilizing factory-certified conversion kits is critical for maintaining the correct manifold pressure and ensuring the burner's flame characteristics align with the Weil McLain CGa heat exchanger design.

For service technicians, this kit streamlines the fuel conversion process by providing Genuine Weil McLain parts that meet precise 120/24V control interface requirements without compromising the cast iron boiler's lifecycle. Proper installation involves swapping the LP orifices for the included natural gas versions to achieve optimized combustion and reliable pilot safety. This kit is a prerequisite for any fuel-switching project on Weil McLain CGa-25 through CGa-6 series units utilizing a traditional pilot light rather than intermittent spark ignition.

• Precision Fuel Calibration: Specifically sized natural gas orifices ensure the correct BTU input for CGa 25-6 standing pilot models.
• OEM Integrity: Prevents field-rigging issues by using genuine Weil McLain conversion hardware.
• Retrofit Compatibility: Engineered for seamless integration with CG or CGM Series 4 through 12 standing pilot architectures.
• Operational Efficiency: Restores factory-spec performance when switching to natural gas fuel sources.

Can I use this kit for a CGa boiler with spark ignition?
No, the 510-811-356 kit is strictly for standing pilot ignition systems. Electronic ignition models require a different conversion kit to accommodate the specific gas valve and module requirements.

Does this kit include the gas valve?
Typical conversion kits for this series focus on orifices and pilot assemblies; however, always verify the specific manifold pressure requirements of the installed valve before completing the changeover.

Is this compatible with CGa-7 or CGa-8 models?
This specific part number is designed for the CGa-25 through CGa-6 range. Larger models like the CGa-7 often require different orifice sizing to maintain safe combustion.

California Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

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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.