IL - Adaptor to Flue Liner - Ø 125
At a Glance
- Durable aluminium liner paired with a robust zalutite outer casing for superior corrosion protection
- Twin wall insulated design featuring a precise 6mm air gap for excellent thermal efficiency
- Specifically engineered for naturally aspirated domestic gas appliances, ensuring reliability under negative pressure
- Capable of handling flue gas temperatures up to 250°C, keeping operations safe and effective
- Proven performance in the UK market for over 25 years, offering trusted quality

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 Adaptor to Flue Liner Ø 125 is part of a twin wall insulated, pre-fabricated domestic gas vent system. It has built a solid reputation over 25 years for its quality and reliability. Designed specifically for naturally aspirated domestic gas-fired appliances with a draught hood or diverter, this adaptor is perfect for chimneys required to operate under negative pressure and dry conditions.
The flue gas temperatures should not exceed 250°C, ensuring safe and efficient performance. This product is available in three diameter sizes: 100mm, 125mm, and 150mm. It consists of an aluminium liner and a durable zalutite outer case, separated by a 6mm air gap.
Suitable for both internal and external applications, it is not suitable for condensing and positive pressure applications. Offering versatility and long-lasting performance, the IL adaptor is a vital component for your chimney system.
SKU: 24-125-03
Technical Specifications | |
---|---|
SKU | 24-125-03 |
Material | Aluminium (Inner) & Zalutite (Outer) |
Diameter | 125mm (Also available in 100mm and 150mm) |
Approvals | CE, BS EN 9001:2008 |
Max Temperature | 250u00b0C |
Distance To Combustibles | 50mm (2 Inches) |
Joint Method | Push fit and twist lock |
Warranty | 5 year conditional warranty |
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.
National Flues Ltd Verdict
The IL Adaptor to Flue Liner Ø 125 from National Flues stands out for its quality and reliability. It has been trusted in the UK for over 25 years. We deliver nationwide and cater to both retail and trade customers.
The IL Adaptor to Flue Liner Ø 125 is used to convert from an IL gas vent system to a flexible flue liner, specifically for domestic gas-fired appliances requiring a chimney that operates under negative pressure and dry conditions.
National Flues is a leading supplier of fireplaces and flues across the UK, known for competitive pricing, reliable delivery, and excellent service to both retail and trade customers.
