Grant Low Level Balanced Flue Extension 450mm
calcPageSize())"
/>
Grant Low Level Balanced Flue Extension 450mm
(Approx. 3-5 working days)


Do you have a MacBlair trade account?
A 450mm extension section used to increase the length of a Grant low level balanced flue run where the standard kit does not reach the required wall position. It is intended for Grant Yellow System installations on boilers up to 26kW and fits into the concentric balanced flue route to maintain the sealed combustion arrangement.
The extension is added inline between approved Yellow System components to move the terminal position outward or to build the required wall thickness and set back. As with other factory made flue sections, it is supplied as a fixed length and should be used as designed rather than cut to suit.
This part is used only within the Yellow System low level balanced flue family and should not be mixed with Blue System plume components or White System vertical kits. When planning the route, keep within the maximum equivalent flue length rules for low level balanced flues and account for any elbows used, with more guidance available in the Oil Boiler Flues category.
- Adds 450mm to a Yellow System balanced flue run
- Suitable for Grant boilers up to 26kW
- Fixed length section intended to be used uncut
- Used to achieve correct wall reach and terminal position
- Fits within low level balanced flue length planning rules
| Energy Rating | Not Selected |
|---|---|
| Applicable Standards | CE Approved |
| Diameter | 120 mm |
| Length | 450 mm |
| Model Name / No | X90M |
| Pack Quantity | 1 Per Box |
| Weight | 1.3 kg |
| Sold Per | Each |
| Suitable For | Grant oil boilers up to 26kW |
| System Type | EZ-Fit Yellow 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 450mm extension section used to increase the length of a Grant low level balanced flue run where the standard kit does not reach the required wall position. It is intended for Grant Yellow System installations on boilers up to 26kW and fits into the concentric balanced flue route to maintain the sealed combustion arrangement.
The extension is added inline between approved Yellow System components to move the terminal position outward or to build the required wall thickness and set back. As with other factory made flue sections, it is supplied as a fixed length and should be used as designed rather than cut to suit.
This part is used only within the Yellow System low level balanced flue family and should not be mixed with Blue System plume components or White System vertical kits. When planning the route, keep within the maximum equivalent flue length rules for low level balanced flues and account for any elbows used, with more guidance available in the Oil Boiler Flues category.
- Adds 450mm to a Yellow System balanced flue run
- Suitable for Grant boilers up to 26kW
- Fixed length section intended to be used uncut
- Used to achieve correct wall reach and terminal position
- Fits within low level balanced flue length planning rules
| Energy Rating | Not Selected |
|---|---|
| Applicable Standards | CE Approved |
| Diameter | 120 mm |
| Length | 450 mm |
| Model Name / No | X90M |
| Pack Quantity | 1 Per Box |
| Weight | 1.3 kg |
| Sold Per | Each |
| Suitable For | Grant oil boilers up to 26kW |
| System Type | EZ-Fit Yellow 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.


