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IL - Gas Vent Terminal - Ø 150 (24-150-91)

The IL Gas Vent Terminal - Ø150mm from National Flues offers a high-quality, twin wall insulated solution for naturally aspirated domestic gas appliances. Engineered from robust aluminium and durable zalutite, this gas vent terminal guarantees efficient performance and long-lasting reliability. Ideal for both domestic and commercial installations in the UK, it is a must-have accessory for ensuring safe and effective venting. Explore our range to find complementary accessories and installation ai Read more...
The price you pay today £80.99
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At a Glance

    Robust aluminium inner liner for enduring high temperatures
    Corrosion-resistant zalutite outer casing with zinc and aluminium coating
    Twin wall insulated design with a 6mm air gap for enhanced performance
    Suitable for naturally aspirated domestic gas appliances with draught hoods or diverters
    Meets CE and BS EN 9001:2008 standards for quality and safety
    Available in multiple sizes (100mm, 125mm, and 150mm) for versatile installation
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We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, July 1st. This is based on current delivery times for this product. Delivery for products not in our warehouses can be delayed because of third party carriers. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days then please give us a call. We can sometimes reduce longer lead times if we pay the carrier £25 for express delivery. Visit our Shipping Information page for more information.

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All our products come with warranties and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.

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We will match any price, like-for-like, on a retail basis. Give us a call if you find it cheaper and want to buy from us.

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.

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Have Questions?
Phone: 01670 206999
Email: [email protected]

The IL Gas Vent Terminal - Ø 150mm is a top-notch twin wall insulated pre-fabricated gas vent, reputed for its quality and reliability in the UK for more than two decades. Perfectly designed for naturally aspirated domestic gas-fired appliances equipped with a draught hood or diverter, this gas vent guarantees efficient operation under negative pressure and dry conditions, tolerating flue gas temperatures up to 250°C. Constructed with a resilient aluminium liner and a robust zalutite outer case, separated by a 6mm air gap, it’s available in three diameter sizes: 100mm, 125mm, and 150mm.

Though suitable for both internal and external use, it should not be used in condensing or positive pressure applications. The IL Gas Vent Terminal brings you the best of both worlds with its versatile application and unwavering durability.

SKU: 24-150-91

Technical Specifications
SKU24-150-91
DesignTwin Wall Insulated
Inner MaterialAluminium
Outer MaterialZalutite (Steel with zinc and aluminium coating)
Air Gap6mm
ApplicationDomestic Gas Appliances with draught hood/diverter, operating under negative pressure & dry conditions
Temperature LimitUp to 250u00b0C
Distance To Combustibles50mm (2 inches)
StandardsEN 1856-1 T250 N1 D Vm L11030 0(50), CE, BS EN 9001:2008
Warranty5 year conditional warranty
Installation of the IL Gas Vent Terminal - Ø150mm requires adherence to specific guidelines to ensure optimal performance and safety. It is essential to use a proper roof flashing along with a storm collar to secure the unit against environmental exposure. A minimum clearance of 50mm to any combustible materials must be maintained. This vent terminal is designed solely for negative pressure systems in dry conditions and is unsuitable for condensing or positive pressure applications. If you are unsure about the installation process, it is advisable to consult a professional installer to guarantee compliance with local building regulations and to ensure a secure installation.

The IL Gas Vent Terminal is used for naturally aspirated domestic gas-fired appliances with a draught hood or diverter, operating under negative pressure and dry conditions.

Yes, the IL Gas Vent Terminal is suitable for both internal and external applications.

The IL Gas Vent Terminal can withstand flue gas temperatures up to 250°C.

The IL Gas Vent Terminal is available in three diameter sizes: 100mm, 125mm, and 150mm.

No, the IL Gas Vent Terminal is not suitable for condensing and positive pressure applications.

The IL Gas Vent Terminal features an aluminium liner and a zalutite outer case, separated by a 6mm air gap.

A storm collar is used in conjunction with a roof flashing to ensure proper performance and installation of the vent terminal.

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