Description
The Weil McLain 450-021-242 is a genuine OEM draft diverter designed to transition from a 5-inch to a 6-inch flue connection on compatible Weil McLain boilers. Draft diverters play a critical role in safe and efficient boiler venting by relieving downdraft conditions, preventing backdrafting, and ensuring that combustion gases are properly directed up and out of the flue system.
Key Features
- Genuine Weil McLain OEM replacement part for assured fit and performance
- 5-inch inlet to 6-inch outlet transition design for compatible boiler applications
- Relieves downdraft and prevents backdrafting into the combustion chamber
- Helps maintain proper draft conditions for efficient boiler operation
- Durable construction built to withstand high-temperature flue gas environments
- Direct drop-in replacement for simplified installation
Application
This draft diverter is intended for use with select Weil McLain boiler models that require a 5″ to 6″ flue transition. Always verify compatibility with your specific boiler model and series before ordering. Using genuine OEM parts ensures proper venting performance and helps maintain manufacturer warranty compliance.
Why Draft Diverters Matter
A properly functioning draft diverter is essential to boiler safety and efficiency. It neutralizes negative pressure fluctuations in the chimney, protects the burner from wind-induced downdrafts, and ensures that flue gases exit safely. Replacing a worn or damaged draft diverter with a genuine Weil McLain part helps maintain optimal combustion and system longevity.
Specifications
- SKU: 450-021-242
- Brand: Weil McLain
- Inlet Size: 5 inches
- Outlet Size: 6 inches
- Part Type: Draft Diverter
- Application: Weil McLain compatible boilers







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