IL - Length 152mm (6in) - Ø 150
At a Glance
- Twin wall insulation for enhanced safety
- Durable aluminium inner liner paired with a zalutite outer case
- Handles flue gas temperatures up to 250°C
- Designed for naturally aspirated gas-fired appliances
- Suitable for both internal and external installations
- Reliable push fit and twist lock joint method
- Over 25 years of proven performance in the UK market
- Available in 100mm, 125mm and 150mm diameters

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.
We Won't Be Beaten On Price
At National Flues, we continuously monitor competitor prices. This ensures that we consistently offer you the best deals on all our products. Here’s how we keep your costs low:
- Daily Price Matching: Our team adjusts prices to ensure we stay competitive.
- Bulk Purchasing Power: We sell a lot, so we can negotiate better rates with suppliers, passing the savings directly to you.
- Operational Efficiency: We have streamlined processes to reduce overhead.
Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.
Free Delivery Over £100: Orders over £100 are free delivery (call us if delivery is required outside the mainland UK).
“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.
Have Questions?
Phone: 01670 206999
Email: [email protected]
- Info
- Specs
- Install
- FAQs
The IL - Length 152mm (6in) - Ø 150 is a twin wall insulated pre-fabricated domestic gas vent, known for its exceptional quality and dependability. Serving the UK market for over 25 years, this gas vent is specifically designed for naturally aspirated domestic gas-fired appliances with a draught hood or diverter. It performs admirably under negative pressure and dry conditions, while efficiently handling flue gas temperatures up to 250°C.
Available in three diameter sizes (100mm, 125mm, and 150mm), the IL system consists of a durable aluminium liner and a zalutite outer case, separated by a 6mm air gap. While suitable for both internal and external installations, it must not be used for condensing and positive pressure applications. This product's compatibility with various setups and its robust construction make it a trusted solution for any domestic gas venting needs.
SKU: 24-150-14
Technical Specifications | |
---|---|
SKU | 24-150-14 |
Length | 152mm (6in) |
Diameter | 150mm |
Inner Material | Aluminium |
Outer Material | Zalutite (coated steel with zinc and aluminium) |
Approvals | CE, BS EN 9001:2008 |
Max Temperature | 250u00b0C |
Distance To Combustibles | 50mm (2 inches) |
Warranty | 5 year conditional warranty |
Joint Method | Push fit and twist lock |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, April 4th. If you need faster stove or fireplace delivery please give us a call. We can often reduce longer lead times if we pay the carrier £25 for express delivery. Visit our Shipping Information page for more information.
Warranty & Returns +
All our products come with warranties. Mi-Flex offers a lifetime guarantee. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.
Price Match Guarantee +
We will match any price like for like. If you find it cheaper within 48 hours, we'll refund the difference.
Compatible and other products that may be of interest...
National Flues Ltd Verdict
The IL 152mm (6in) gas vent pipe is a top-tier choice for reliable and high-quality domestic gas venting. With over 25 years of proven performance, you can trust this product for both internal and external applications. Available for retail and trade customers with nationwide delivery.
The IL 152mm (6 inch) gas vent is designed for venting naturally aspirated domestic gas-fired appliances under negative pressure and dry conditions.
National Flues has been a trusted supplier of high-quality flues and fireplaces across the UK, providing exceptional products and reliable delivery to both retail and trade customers.
