904L Mi-FLEX 125mm x 44m COIL (36Z-125-44)
At a Glance
- Double-skinned 904L stainless steel construction (0.105mm inner and outer skins)
Flexible design ideal for relining masonry chimneys
Multi-fuel compatibility: gas, oil, coal, coke, cured dry logs, cured dry peat, and smokeless fuels
HETAS and CE approved for safety and performance
Lifetime warranty for peace of mind
Designed for optimal airflow and heat efficiency
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 125mm x 44m COIL is a top-tier double skinned flexible flue liner designed for relining masonry chimneys. Constructed with durable 904L grade stainless steel, both the inner and outer skins measure 0.105mm in thickness, ensuring longevity and performance. The smooth inner liner enhances airflow, while the convoluted outer skin provides added flexibility and strength.
This flue liner accommodates a variety of fuels, including gas, oil, coal, coke, cured dry logs, cured dry peat, and approved smokeless fuels. It carries the essential approvals from HETAS and CE, confirming its high standards. For installation, ensure the liner is fed from the top with arrows pointing upward to align with gas flow.
Secure it with a Nose Cone and string, easing it down the chimney for a perfect fit. Regular maintenance is advised, especially for chimneys serving solid fuel appliances, to keep it functioning optimally.
SKU: 36Z-125-44
| Technical Specifications | |
|---|---|
| SKU | 36Z-125-44 |
| Flue Type | 904L Mi-FLEX 125mm x 44m COIL |
| Inner Material | 904L stainless steel, 0.105mm thick |
| Outer Material | 904L stainless steel, 0.105mm thick |
| Fuel Compatibility | Gas, Oil, Coal, Coke, Cured Dry Logs, Cured Dry Peat, Smokeless Fuels |
| Approvals | HETAS, CE |
| Manufacture Method | Single Strip with Omega-Lock seam |
| Warranty | Lifetime |
| Installation | Fed from top, use Nose Cone and string for secure setup |
