904L Mi-FLEX 300mm x 1m CUT LENGTH (36Z-300-1)
At a Glance
- Premium 904L stainless steel construction with 0.105mm thick inner and outer layers
Double-skinned, flexible design for effective chimney relining
Multi-fuel versatility: compatible with gas, oil, coal, coke, cured dry logs, cured dry peat and smokeless fuels
Omega-Lock seam for an unrivalled, secure seal
HETAS approved and CE certified for safety and quality
Lifetime manufacturer’s warranty when installed with Screw-FIX accessories
Designed for top-down installation ensuring optimal gas flow
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 300mm x 1m CUT LENGTH is a robust, double-skinned flexible flue liner seamlessly designed for relining masonry chimneys. Ideal for multi-fuel use, this liner works perfectly with burning gas, oil, coal, coke, cured dry logs, cured dry peat, and approved smokeless fuels. Constructed from premium 904L grade stainless steel, both the smooth inner and convoluted outer layers are 0.105mm thick.
The flue liner's quattrolock seam ensures an unrivaled seal, achieved by folding a single strip of steel at 180 degrees and then folding it four ways. Rigorous HETAS and CE approvals confirm its quality, making it a stellar choice. Installation should be from the top, ensuring the arrows indicate upward gas flow.
Follow a meticulous process including chimney sweeping and pot inspection for optimal performance. Maintenance involves regular sweeping, at least annually for solid fuel appliances.
SKU: 36Z-300-1
| Technical Specifications | |
|---|---|
| SKU | 36Z-300-1 |
| Model | 904L Mi-FLEX 300mm x 1m CUT LENGTH |
| Dimensions | 300mm x 1m (cut length) |
| Material | 904L stainless steel (0.105mm thick inner and outer layers) |
| Seam Technology | Omega-Lock |
| Fuel Compatibility | Gas, oil, coal, coke, cured dry logs, cured dry peat, smokeless fuels |
| Approvals | HETAS, CE |
| Warranty | Lifetime (with Screw-FIX accessories) |
| Producer | Mi-Flues Ltd |
