Boiler Flue Extensions

(43 products)

Boiler flue extensions are used to extend a boiler's flue outlet system, effectively an additional flue length of either horizontal or vertical orientation. Flue extensions are brand specific and must be the same brand as the manufacturer of the flue piping system that is being extended. The range covers the most popular brands, lengths and sizes. This must be situated at least 30-60cm from a window or door, preventing harmful gases re-entering the property.

Filters Clear all


Grant Green External Flue Extension 123 x 950mm (859KP)

New
Product rating
0 out of 5 stars
Grant Green External Flue Extension 123 x 950mm

Grant Green External Flue Extension 123 x 950mm (859KP)

New
Product rating
0 out of 5 stars

£80.99

INC VAT
in your basket Checkout Now

Grant Green External Flue Extension 152 x 450mm (311KP)

New
Product rating
0 out of 5 stars
Grant Green External Flue Extension 152 x 450mm

Grant Green External Flue Extension 152 x 450mm (311KP)

New
Product rating
0 out of 5 stars

£80.99

INC VAT
in your basket Checkout Now
Grant Yellow Balanced Horizontal Flue Extension 152 x 450mm

£75.99

INC VAT
in your basket Checkout Now

Grant White Balanced Flue Extension 180 x 225mm (651KP)

New
Product rating
0 out of 5 stars
Grant White Balanced Flue Extension 180 x 225mm

Grant White Balanced Flue Extension 180 x 225mm (651KP)

New
Product rating
0 out of 5 stars

£68.99

INC VAT
in your basket Checkout Now

Grant White Balanced Vertical Flue Extension 150 x 450mm (462KP)

New
Product rating
0 out of 5 stars
Grant White Balanced Vertical Flue Extension 150 x 450mm

£68.99

INC VAT
in your basket Checkout Now
Grant Yellow Balanced Horizontal Flue Extension 123 x 450mm

£67.99

INC VAT
in your basket Checkout Now
Grant Yellow Balanced Horizontal Flue Extension 152 x 225mm

£65.99

INC VAT
in your basket Checkout Now

Grant Green External Flue Extension 123 x 450mm (507KP)

New
Product rating
0 out of 5 stars
Grant Green External Flue Extension 123 x 450mm

Grant Green External Flue Extension 123 x 450mm (507KP)

New
Product rating
0 out of 5 stars

£65.99

INC VAT
in your basket Checkout Now

Grant White Balanced Vertical Flue Extension 150 x 225mm (527KP)

New
Product rating
0 out of 5 stars
Grant White Balanced Vertical Flue Extension 150 x 225mm

£62.99

INC VAT
in your basket Checkout Now

Grant Orange Flue Extension 100 x 950mm (845KP)

New
Product rating
0 out of 5 stars
Grant Orange Flue Extension 100 x 950mm

Grant Orange Flue Extension 100 x 950mm (845KP)

New
Product rating
0 out of 5 stars

£59.99

INC VAT
in your basket Checkout Now

Grant Green External Flue Extension 123 x 250mm (326KP)

New
Product rating
0 out of 5 stars
Grant Green External Flue Extension 123 x 250mm

Grant Green External Flue Extension 123 x 250mm (326KP)

New
Product rating
0 out of 5 stars

£56.99

INC VAT
in your basket Checkout Now

Grant Orange Adjustable Flue Extension 100 x 235-300mm (168KP)

New
Product rating
0 out of 5 stars
Grant Orange Adjustable Flue Extension 100 x 235-300mm

Grant Orange Adjustable Flue Extension 100 x 235-300mm (168KP)

New
Product rating
0 out of 5 stars

£55.99

INC VAT
in your basket Checkout Now
Grant Yellow Balanced Horizontal Flue Extension 123 x 225mm

£52.99

INC VAT
in your basket Checkout Now

Vaillant Flue Extension 100 x 500mm (418KK)

Product rating
0 out of 5 stars
Vaillant  Flue Extension 100 x 500mm

Vaillant Flue Extension 100 x 500mm (418KK)

Product rating
0 out of 5 stars

£49.49

INC VAT
in your basket Checkout Now

Grant Orange Flue Extension 100 x 450mm (273KP)

New
Product rating
0 out of 5 stars
Grant Orange Flue Extension 100 x 450mm

Grant Orange Flue Extension 100 x 450mm (273KP)

New
Product rating
0 out of 5 stars

£46.99

INC VAT
in your basket Checkout Now

Grant Yellow Plume Kit Extension 80 x 1000mm (464KP)

New
Product rating
0 out of 5 stars
Grant Yellow Plume Kit Extension 80 x 1000mm

Grant Yellow Plume Kit Extension 80 x 1000mm (464KP)

New
Product rating
0 out of 5 stars

£41.99

INC VAT
in your basket Checkout Now

£38.99

INC VAT
in your basket Checkout Now

Grant Orange Flue Extension 100 x 250mm (350KP)

New
Product rating
0 out of 5 stars
Grant Orange Flue Extension 100 x 250mm

Grant Orange Flue Extension 100 x 250mm (350KP)

New
Product rating
0 out of 5 stars

Vaillant Flue Extension Black 80 x 1000mm (899KK)

Product rating
0 out of 5 stars
Vaillant  Flue Extension Black 80 x 1000mm

Vaillant Flue Extension Black 80 x 1000mm (899KK)

Product rating
0 out of 5 stars

£33.69

INC VAT
in your basket Checkout Now

Vaillant Flue Extension White 80 x 1000mm (598KK)

Product rating
0 out of 5 stars
Vaillant  Flue Extension White 80 x 1000mm

Vaillant Flue Extension White 80 x 1000mm (598KK)

Product rating
0 out of 5 stars

£33.69

INC VAT
in your basket Checkout Now

*Delivered direct from our suppliers in the number of working days stated on the delivery button