IL Gas Pipe

Our IL gas piping is an air-insulated gas vent system that is designed for use with naturally aspirated gas appliances with zero or negative pressure systems, either with draught hoods or with flue gas temperatures that do not exceed 250°C. 

Our gas pipes are constructed in a range of straight lengths, associated fittings, and accessories. The gas piping is available in three different diameter sizes including 100mm, 125mm, and 150mm

The gas pipes feature a 0.3mm inner wall that is constructed from aluminium and the outer wall (also 0.3mm) is fabricated from Zalutite (steel that is coated in zinc and aluminium) with a 6mm incorporated air gap between the two. This allows the inner wall to freely expand as the temperature changes inside the gas vent.

This twin wall system has a 50mm distance to combustibles and it fits together using a ‘twist-lock’ method, meaning that the components are pushed together and twisted to engage the locking device. This not only provides a secure and firm connection, but it also ensures ease of assembly.

Take a look at our range of IL gas piping, gas vents, pipe connectors, and gas flue boxes below.


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Length 1524mm (60in) - 125mm

1500mm (5 foot) fixed length pipe..

Our Price (ex VAT): £60.37 Inc VAT: £72.44

Length 1524mm (60in) - 150mm

1500mm (5 foot) fixed length pipe..

Our Price (ex VAT): £64.84 Inc VAT: £77.81

Length 914mm (36in) - 125mm

914mm (3 foot) fixed length pipe..

Our Price (ex VAT): £39.58 Inc VAT: £47.50

Length 914mm (36in) - 150mm

914mm (3 foot) fixed length pipe..

Our Price (ex VAT): £45.39 Inc VAT: £54.47

Length 457mm (18in) - 125mm

457mm (18 inch) fixed length pipe..

Our Price (ex VAT): £21.39 Inc VAT: £25.67

Length 457mm (18in) - 150mm

457mm (18 inch) fixed length pipe..

Our Price (ex VAT): £26.47 Inc VAT: £31.76

Length 305mm (12in) - 150mm

305mm (12 inch) fixed length pipe..

Our Price (ex VAT): £23.93 Inc VAT: £28.72

Length 305mm (12in) - 125mm

305mm (12 inch) fixed length pipe..

Our Price (ex VAT): £20.17 Inc VAT: £24.20

Length 152mm (6in) - 125mm

152mm (6 inch) fixed length pipe..

Our Price (ex VAT): £13.93 Inc VAT: £16.72

Length 152mm (6in) - 150mm

152mm (6 inch) fixed length pipe..

Our Price (ex VAT): £15.09 Inc VAT: £18.11

90 Tee - 125mm

90 degree tee, you will need a tee cap with this item...

Our Price (ex VAT): £60.29 Inc VAT: £72.35

Tee Cap - 150mm

Tee cap, used to cap the 90 degree tee..

Our Price (ex VAT): £16.76 Inc VAT: £20.11

Tee Cap - 125mm

Tee cap, used to cap the 90 degree tee..

Our Price (ex VAT): £16.89 Inc VAT: £20.27

Adjustable Length - 305mm (12in) - 150mm

50-305mm telescopic adjustable length pipe..

Our Price (ex VAT): £30.78 Inc VAT: £36.94

Adjustable Length - 457mm (18in) - 150mm

50-457mm telescopic adjustable length pipe..

Our Price (ex VAT): £39.54 Inc VAT: £47.45