904L Mi-FLEX 100mm x 44m COIL (36Z-100-44)
At a Glance
- Constructed from high-grade 904L stainless steel for lasting durability
Double-skinned design with a smooth inner surface and convoluted outer layer for optimal gas flow
Manufactured using a single strip with a robust Omega-Lock seam
HETAS approved and CE certified to ensure safety and compliance
Lifetime warranty when installed with Screw-FIX accessories
Delivery Information +
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.
Warranty & Returns +
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.
Price Match Guarantee +
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.
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 904L Mi-FLEX 100mm x 44m COIL is a double-skinned flexible flue liner specifically designed for relining masonry chimneys. Crafted from high-grade 904L stainless steel, this liner boasts a smooth inner surface and a convoluted outer skin, each with a thickness of 0.105mm. The unique construction, featuring a single strip of steel bent at 180 degrees and closely sealed with a quattrolock seam, ensures maximum durability and safety.
Approved by HETAS and CE certified, this flue liner is ideal for use with gas, oil, coal, coke, cured dry logs, peat, and smokeless fuels. Installation is a breeze: simply feed the liner down your chimney from the top, ensuring the arrows indicate the direction of gas flow. Regular maintenance is essential, with an annual sweep recommended for chimneys servicing solid fuel appliances to maintain optimal performance.
SKU: 36Z-100-44
| Technical Specifications | |
|---|---|
| SKU | 36Z-100-44 |
| Dimensions | 100mm x 44m coil (44m drum) |
| Material | 904L stainless steel, 0.105mm thick (inner and outer) |
| Construction | Double-skinned; Single Strip with Omega-Lock seam |
| Approvals | HETAS approved, CE certified |
| Fuel Compatibility | Gas, oil, coal, coke, cured dry logs, peat, and smokeless fuels |
| Installation | Feed from the top of the chimney according to arrow markings |
| Warranty | Lifetime (when installed with Screw-FIX accessories) |
