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

These telescopic adjustable length pipes can be adjusted from 50mm all the way to 457mm (18in) long...

Our Price (ex VAT): £41.15 Inc VAT: £49.38

Adjustable Length – 457mm (18in) – 125mm

Our 125mm telescopic adjustable length pipes can be adjusted from 50mm all the way to 457mm (18in) l..

Our Price (ex VAT): £39.69 Inc VAT: £47.62

Adjustable Length - 305mm (12in) - 125mm

50-305mm telescopic adjustable length pipe..

Our Price (ex VAT): £31.22 Inc VAT: £37.47

Draughthood Connector – 125mm

Our 125mm draughthood connectors are made from high-quality materials such as aluminium and zalutite..

Our Price (ex VAT): £16.99 Inc VAT: £20.39

Ridge Tile Adapter (Aluminium) - 125mm

Converts IL to an oblong shape to connect to a ridge tile outlet...

Our Price (ex VAT): £44.65 Inc VAT: £53.58

Adjustable Elbow 0-90 degree - 125mm

Our 125mm IL gas pipe connectors are made using the finest materials such as l. These elbow pipe con..

Our Price (ex VAT): £39.14 Inc VAT: £46.97

Adjustable Elbow 0-90 degree - 150mm

Our 150mm IL gas pipe connectors are made using the finest materials such as . These elbow pipe conn..

Our Price (ex VAT): £40.49 Inc VAT: £48.59

Gas Vent Terminal - 125mm

Must be used on all systems connected to a gas appliance..

Our Price (ex VAT): £37.87 Inc VAT: £45.45

Gas Vent Terminal - 150mm

Must be used on all systems connected to a gas appliance..

Our Price (ex VAT): £39.65 Inc VAT: £47.58

Storm Collar (supplied with Sealant) - 125mm

Storm collar is used in conjunction with a roof flashing..

Our Price (ex VAT): £15.31 Inc VAT: £18.37

Storm Collar (supplied with Sealant) - 150mm

Storm collar is used in conjunction with a roof flashing..

Our Price (ex VAT): £15.31 Inc VAT: £18.37

Draughthood Connector – 150mm

Our 150mm draughthood connectors are made from high-quality materials such as aluminium and zalutite..

Our Price (ex VAT): £19.77 Inc VAT: £23.72

Support Plate - 125mm

Used in conjunction with the firestop plate, gives support to the flue system...

Our Price (ex VAT): £34.13 Inc VAT: £40.95

Support Plate - 150mm

Used in conjunction with the firestop plate, gives support to the flue system...

Our Price (ex VAT): £34.13 Inc VAT: £40.95

Wall Band (Internal) - 125mm Silver

Wall Bracket offers lateral support only keeps flue 50mm from combustables..

Our Price (ex VAT): £18.92 Inc VAT: £22.71