Grant Ez-Fit Internal High Level Balanced Flue Kit - 450mm

The Grant Ez-Fit internal high level balanced flue kit features a 450mm rigid extension designed t...

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Product Information

Full details

The Grant Ez-Fit Internal High Level Balanced Flue Kit (450mm extension) is designed for heating engineers and homeowners seeking to extend their existing balanced flue systems to meet specific installation site requirements. This rigid extension provides a reliable, secure connection that maintains the integrity of your Grant heating system's ventilation, though it is exclusively compatible with specific flue kits and requires precise measurement before installation to ensure system safety.

All features

Model Part NumberExtk09450/90
BrandGrant

Extended Product Information

FAQs

Can I cut this 450mm extension to a shorter length?

Do not cut or modify the extension unless specifically authorized by the installation manual, as this can compromise the structural integrity and seal.

Is this compatible with non-Grant boilers?

No, this product is designed specifically for use with Grant Ez-Fit flue systems and is not guaranteed to work with other manufacturers.

What tools are needed for installation?

Standard plumbing tools and a flue gas analyzer for post-installation safety testing are required.

Does this come with mounting brackets?

The kit includes the extension; depending on your specific layout, you may need to purchase additional support brackets for the extended flue run.

Where should the extension be positioned in the flue run?

It should be placed as per the original boiler flue diagram requirements; always ensure it is securely connected to the primary flue components.

Troubleshooting

Visible gaps at the extension joints

Ensure the extension is fully seated into the mating component and check that the locking ring or seal is properly engaged.

Boiler flagging a flue obstruction error

Inspect the entire length of the flue, including the extension, for blockages or signs of crushing that may restrict airflow.

Pros and Cons

Pros

  • High-quality rigid construction
  • Seamless compatibility with Grant VTK055090 and HLK015090 systems
  • Simplifies complex flue routing
  • Maintains manufacturer safety specifications

Cons

  • Not compatible with all boiler flue systems
  • Requires professional installation to ensure safety
  • Fixed length may require additional components for exact fits

Setup, Compatibility & Care

This extension is compatible specifically with the Grant VTK055090 and HLK015090 flue systems. Before installation, ensure the flue path is clear of obstructions and that you have the necessary support brackets to secure the extension, as rigid extensions may require additional stabilization. For care, perform an annual inspection during your boiler's service. Check the joints for any signs of corrosion or movement, and ensure no debris has accumulated at the external terminal. Never use sealant that is not approved for flue gas temperatures.