Grant Orange System Flexible Flue Kit 8M (100mm)
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Grant Orange System Flexible Flue Kit 8M (100mm)
(Approx. 3-5 working days)


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This 8m flexible flue kit is part of Grant’s Orange System for conventional flue installations, used where an existing masonry chimney is being retained rather than fitting a balanced flue. The kit is suitable for Grant oil boilers in the 12–46kW range that require a 100mm flexible liner to safely convey flue gases up the chimney.
The kit provides a continuous flexible liner length to match typical chimney heights around eight metres, along with the main terminals and plates needed to finish the top and bottom of the installation. Once fitted, the liner helps protect the chimney structure from condensate and acidic products of combustion, while improving the performance and reliability of the overall flue system.
It is designed to work alongside other conventional flue components and adaptors offered under the Oil Boiler Flues category, allowing installers to connect from the boiler outlet to the flexible liner and complete the termination at the chimney top. System sizing and height limits must follow Grant’s boiler instructions and relevant standards for conventional flue design.
Kit Components
- 8m 100mm flexible flue liner
- Chimney top plate
- Terminal or cowl
- Boiler-to-liner adaptor
- Fixing clamp(s) and basic fixings
- 8m flexible liner length for medium-height chimneys
- 100mm size for 12–46kW Grant oil boilers
- Suitable for use in existing masonry chimneys
- Includes key terminal and plate components
- Part of the Grant Orange System conventional flue range
| Brand | Grant |
|---|---|
| Applicable Standards | CE Approved |
| Connection Type | Flexible liner with adaptors |
| Diameter | 100 mm |
| Length | 8 m |
| Model Name / No | GFKIT8/100 |
| Weight | 7 kg |
| Sold Per | Pack |
| Suitable For | Grant oil boilers 12–46kW |
- 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.
This 8m flexible flue kit is part of Grant’s Orange System for conventional flue installations, used where an existing masonry chimney is being retained rather than fitting a balanced flue. The kit is suitable for Grant oil boilers in the 12–46kW range that require a 100mm flexible liner to safely convey flue gases up the chimney.
The kit provides a continuous flexible liner length to match typical chimney heights around eight metres, along with the main terminals and plates needed to finish the top and bottom of the installation. Once fitted, the liner helps protect the chimney structure from condensate and acidic products of combustion, while improving the performance and reliability of the overall flue system.
It is designed to work alongside other conventional flue components and adaptors offered under the Oil Boiler Flues category, allowing installers to connect from the boiler outlet to the flexible liner and complete the termination at the chimney top. System sizing and height limits must follow Grant’s boiler instructions and relevant standards for conventional flue design.
Kit Components
- 8m 100mm flexible flue liner
- Chimney top plate
- Terminal or cowl
- Boiler-to-liner adaptor
- Fixing clamp(s) and basic fixings
- 8m flexible liner length for medium-height chimneys
- 100mm size for 12–46kW Grant oil boilers
- Suitable for use in existing masonry chimneys
- Includes key terminal and plate components
- Part of the Grant Orange System conventional flue range
| Brand | Grant |
|---|---|
| Applicable Standards | CE Approved |
| Connection Type | Flexible liner with adaptors |
| Diameter | 100 mm |
| Length | 8 m |
| Model Name / No | GFKIT8/100 |
| Weight | 7 kg |
| Sold Per | Pack |
| Suitable For | Grant oil boilers 12–46kW |
- 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.


