Grant Vertical Flue Extension 950mm (Up to 26kW)
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Grant Vertical Flue Extension 950mm (Up to 26kW)
(Approx. 3-5 working days)


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A 950mm fixed extension section for Grant EZ Fit White System balanced flues, used to increase the overall reach of a high level or vertical flue run on boilers up to 26kW. It is a concentric extension that maintains the balanced flue air and exhaust path when installed as part of the approved White System assembly.
Supplied with a locking band, the extension connects to the mating White System section to keep the joint aligned and secure. It is used when the base kit does not achieve the required termination position, for example when additional vertical rise is needed before a roof exit or when creating a longer internal route to a high level terminal.
White System extensions are for high level, vertical (and internal red system use where applicable) and they must not be mixed with Yellow, Green or Orange system components. Flue extensions are not intended to be cut, so the flue length is built using fixed and adjustable sections to suit the installation.
- Fixed 950mm extension length for planned flue routing
- Supplied with locking band for secure joint connection
- Compatible with Grant White System kits up to 26kW
- Supports high level and vertical balanced flue layouts
- Concentric extension maintains room sealed flue design
| Brand | Grant |
|---|---|
| Applicable Standards | CE Approved |
| Includes | Locking Band, 950mm Extension |
| Length | 950 mm |
| Model Name / No | EXT K 11 950/90 |
| Sold Per | Item |
| Suitable For | Grant oil boilers up to 26kW |
| Outer Diameter | 150 mm |
| System Type | EZ-Fit White System |
| Flue Type | Balanced Flue |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.
A 950mm fixed extension section for Grant EZ Fit White System balanced flues, used to increase the overall reach of a high level or vertical flue run on boilers up to 26kW. It is a concentric extension that maintains the balanced flue air and exhaust path when installed as part of the approved White System assembly.
Supplied with a locking band, the extension connects to the mating White System section to keep the joint aligned and secure. It is used when the base kit does not achieve the required termination position, for example when additional vertical rise is needed before a roof exit or when creating a longer internal route to a high level terminal.
White System extensions are for high level, vertical (and internal red system use where applicable) and they must not be mixed with Yellow, Green or Orange system components. Flue extensions are not intended to be cut, so the flue length is built using fixed and adjustable sections to suit the installation.
- Fixed 950mm extension length for planned flue routing
- Supplied with locking band for secure joint connection
- Compatible with Grant White System kits up to 26kW
- Supports high level and vertical balanced flue layouts
- Concentric extension maintains room sealed flue design
| Brand | Grant |
|---|---|
| Applicable Standards | CE Approved |
| Includes | Locking Band, 950mm Extension |
| Length | 950 mm |
| Model Name / No | EXT K 11 950/90 |
| Sold Per | Item |
| Suitable For | Grant oil boilers up to 26kW |
| Outer Diameter | 150 mm |
| System Type | EZ-Fit White System |
| Flue Type | Balanced Flue |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.


