IL - Length 305mm (12in) - Ø 100
At a Glance
- - Robust construction with an aluminium liner and a zalutite (zinc-aluminium coated steel) outer case
- - Designed to operate at flue gas temperatures up to 250°C
- - Available in multiple diameters (100mm, 125mm, and 150mm) for versatile applications
- - Engineered for naturally aspirated domestic gas appliances with draught hoods or diverters
- - Features a 6mm air gap providing efficient thermal insulation and continuous performance

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 305mm (12 inch) - Ø 100mm Twin Wall Insulated Gas Vent has been the go-to choice for UK residents for over 25 years. Known for its unwavering quality and reliability, this gas vent is designed specifically for naturally aspirated domestic gas-fired appliances fitted with a draught hood or diverter. Operating under negative pressure with flue gas temperatures not exceeding 250°C, it ensures optimal performance in dry conditions.
This robust system includes an aluminium liner and a zalutite outer case, separated by a 6mm air gap, providing excellent insulation. Available in three diameter sizes - 100mm, 125mm, and 150mm, it's versatile for various installations, both internal and external. However, it is not suitable for condensing and positive pressure applications.
SKU: 24-100-13
Technical Specifications | |
---|---|
Product ID | 3140 |
SKU | 24-100-13 |
Length | 305mm (12in) |
Diameter | 100mm |
Inner Material | Aluminium |
Outer Material | Zalutite (zinc-aluminium coated steel) |
Operating Temperature | Up to 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.
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National Flues Ltd Verdict
The IL Length 305mm (12 inch) - Ø 100mm from National Flues is a reliable and high-quality gas vent, suitable for various applications. With nationwide delivery and unbeatable prices, we cater to both retail and trade customers alike.
The IL Length 305mm (12in) - Ø 100mm Twin Wall Insulated Gas Vent is used to safely vent flue gases from naturally aspirated domestic gas-fired appliances.
National Flues, a leading supplier of fireplaces and flues in the UK, offers reliable products with nationwide delivery, catering to both retail and trade customers.
