316L Mi-FLEX 100mm x 44m COIL
At a Glance
- - Crafted from premium 316L stainless steel
- - Dual-skinned design with 0.105mm inner and outer layers
- - Compatible with a variety of fuels including gas, oil, coal, coke, dry logs, and peat
- - HETAS approved and CE certified for enhanced safety
- - Lifetime manufacturer''s warranty when installed with Screw-FIX accessories
- - Convoluted outer design for efficient gas flow and performance

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
Introducing the 316L Mi-FLEX 100mm x 44m Flexible Flue Liner—an exemplary dual-skinned flexible flue liner perfect for enhancing the functionality and safety of your masonry chimney. Expertly crafted from 316L grade stainless steel, this liner features a smooth inner wall and a durable convoluted outer layer, both 0.105mm thick. This robust construction ensures resilience and a smooth flow of gases, certified by HETAS and CE approved for peace of mind.
Installation is straightforward: always fit from the top, ensure the gas flow arrows point upwards and use a nose cone for easy insertion. Regular maintenance, such as sweeping, will ensure longevity, especially for solid fuel appliances. A fantastic addition to your home or trade project, this product is designed for use with gas, oil, coal, coke, dry logs, and peat.
SKU: 35Z-100-44
Technical Specifications | |
---|---|
SKU | 35Z-100-44 |
Dimensions | 100mm x 44m coil |
Material | 316L stainless steel (0.105mm thick inner & outer) |
Approvals | HETAS, CE |
Fuel Compatibility | Wood, Oil, Gas, Low sulphur coal, Coke, Dry logs, Peat |
Installation | Top fitted with nose cone assistance |
Warranty | Lifetime (with Screw-FIX accessories) |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, April 2nd. 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 316L Mi-FLEX 100mm x 44m Flexible Flue Liner is a top-tier product that meets all your flue lining needs, whether for gas, oil, or solid fuels. With a lifetime manufacturer's warranty when installed with Screw-FIX accessories and our reliable nationwide delivery, it's the go-to choice for both retail and trade customers.
The 316L Mi-FLEX Flexible Flue Liner is designed for relining masonry chimneys to ensure the safe and efficient emission of gases from various fuels.
National Flues is a leading supplier of high-quality flues and fireplaces, offering reliable delivery and competitive prices nationwide. We serve both retail and trade customers with secure online payments available.
