316L Mi-FLEX 125mm x 44m COIL (35Z-125-44)
At a Glance
- Made from 316L grade stainless steel for superior durability
Double-skinned design with a smooth inner liner and convoluted outer for extra protection
Manufactured as a single strip with a reliable Omega-Lock seam
Suitable for multi-fuel applications including gas, oil, coal, coke, and cured dry fuels
HETAS approved and CE certified for safety and reliability
Lifetime manufacturer’s warranty when installed with Screw-FIX accessories
125mm diameter with a 44m drum for extensive chimney relining
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 316L Mi-FLEX 125mm x 44m COIL is a double-skinned flexible flue liner, expertly designed to reline masonry chimneys. Constructed with a smooth inner liner from 316L grade stainless steel, this flue liner offers robust durability at 0.105mm thickness. Its convoluted outer skin, also made of 316L stainless steel, ensures maximum protection.
Notably, the liner is created from a single strip of steel bent at 180 degrees, sealed with an Omega-Lock for a secure fit. Approved by HETAS and CE-certified, this versatile flue liner is suitable for gas, oil, coal, coke, cured dry logs, and cured dry peat. Installation is straightforward; however, ensure the liner fits the chimney, sweep the chimney, and ensure the pot is in good condition.
Maintenance is simple—sweep the chimneys serving solid fuel appliances at least once a year to maintain optimal performance.
SKU: 35Z-125-44
| Technical Specifications | |
|---|---|
| Diameter | 125mm |
| Drum Length | 44m |
| Inner Material | 316L Stainless Steel (0.105mm thick) |
| Outer Material | 316L Stainless Steel (0.105mm thick) |
| Seam | Omega-Lock |
| Manufacture | Single Strip |
| Approvals | HETAS, CE |
| Warranty | Lifetime (with Screw-FIX accessories) |
| Suitable Fuels | Wood, Oil, Gas, Low sulphur coal, Coke, Cured dry logs, Cured dry peat |
