Description
The Weil McLain 381-354-519 is a genuine OEM Insulation Kit designed specifically for the CG6 series cast iron gas-fired boiler. Engineered to Weil McLain’s exacting standards, this insulation kit helps maintain peak boiler efficiency by minimizing standby heat loss and protecting critical boiler components from thermal stress.
Why Use the OEM Insulation Kit?
Using the correct factory-specified insulation kit ensures a proper fit and optimal thermal performance for your CG6 boiler. It preserves the integrity of the boiler jacket assembly, contributes to energy efficiency, and supports long-term reliable operation.
Key Features
- Genuine Weil McLain OEM replacement insulation kit
- Designed specifically for the CG6 cast iron boiler series
- Reduces standby heat loss for improved system efficiency
- Protects boiler components from excessive heat exposure
- Ensures proper fit and alignment within the boiler jacket
- Supports long-term boiler reliability and performance
Compatibility
- Compatible with: Weil McLain CG6 Series Cast Iron Gas-Fired Boilers
- OEM Part Number: 381-354-519
Installation
Installation should be performed by a qualified HVAC technician in accordance with Weil McLain’s installation and service instructions for the CG6 boiler series. Always follow local codes and manufacturer guidelines.







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