Free Delivery over £100+ 5on Trustpilot Browse our popular stoves Fast Mainland UK Delivery Buy stoves with install packs Call 01670 206 999 for help

316L Mi-FLEX 180mm x 32m COIL (35Z-180-32)

Discover National Flues' premium 316L Mi-FLEX 180mm x 32m COIL – a top-tier, double-skinned flue liner designed to reline masonry chimneys with precision. Engineered from superior 316L stainless steel and approved by both HETAS and CE, this flexible Read more...
316L Mi-FLEX 180mm x 32m COIL
IN STOCK
Product Thumbnail
Product Thumbnail
Now only £1,218.99
including free nationwide delivery Give us a call if you find it cheaper and we'll normally price match.
  • Fast deliveryWednesday, October 29th*
  • Price matchWe’ll match like-for-like
  • Secure checkoutCard· Google/Apple Pay· Klarna· Paypal

 

Payment Options
Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, October 29th. This is based on current lead times. Bear in mind that it is a busy time of year. 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 on 01670 206 999. 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.

About National Flues Ltd +

We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.

At a Glance

  • Premium 316L stainless steel construction with dual 0.105mm layers
  • Innovative Omega-Lock seal ensuring a secure, four-plane folded seam
  • Multi-fuel compatibility: suitable for wood, oil, gas, and low sulphur coal
  • HETAS and CE approved for rigorous safety and quality standards
  • Lifetime warranty when used with Screw-FIX accessories

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]

The 316L Mi-FLEX 180mm x 32m COIL is a top-tier, multi-fuel flexible flue liner designed for relining within masonry chimneys. Crafted from superior 316L grade stainless steel, the liner boasts both an inner and convoluted outer skin, each 0.105mm thick, ensuring long-lasting durability. The unique construction includes an Omega-Lock seal achieved by bending a single strip of steel at 180 degrees and folding the seam in four planes.

This product is HETAS and CE approved, guaranteeing top-notch safety and performance standards. Ideal for use with gas, oil, coal, cured dry logs, and peat, it's easy to install and maintain, making it a versatile solution for many heating needs.

SKU: 35Z-180-32

Technical Specifications
SKU35Z-180-32
Dimensions180mm x 32m coil
Inner Material316L stainless steel (0.105mm thick)
Outer Material316L stainless steel (0.105mm thick)
Seam TechnologyOmega-Lock (single strip, 4-fold seam)
Fuel CompatibilityWood, Oil, Gas, Low sulphur coal
ApprovalsHETAS, CE
WarrantyLifetime (with Screw-FIX accessories)
ManufacturerMi-Flues Ltd
For optimal performance, install the liner from the top of the chimney ensuring the directional arrows point upwards to indicate the correct gas flow. Secure the liner with the provided nose cone and pull string, and verify that the chimney has been thoroughly swept. Check that the pot is in excellent condition. Additionally, consider optional accessories such as support brackets and specialised fixes to guarantee a flawless installation.

Yes, the 316L Mi-FLEX 180mm x 32m COIL is suitable for use with gas, oil, coal, coke, dried logs, and dried peat.

The liner should be fitted from the top of the chimney with the arrows pointing upwards to indicate gas flow direction. It’s crucial to secure the liner with a Nose Cone and pull it down using a string.

Absolutely, the 316L Mi-FLEX flue liner is both HETAS and CE approved, ensuring it meets rigorous safety and quality standards.

The Omega-Lock seal is a unique feature of this flue liner, achieved by bending a single strip of steel at 180 degrees and folding the seam in four planes, providing an exceptionally secure and durable lock.

The 316L Mi-FLEX flue liner features both an inner and outer layer of stainless steel, each with a thickness of 0.105mm.

Chimneys serving solid fuel appliances should be swept and maintained at least once a year, although more frequent maintenance may be necessary depending on usage.

Ensure the liner can fit down the chimney, sweep the chimney, and check that the pot is in good condition. If not using a suspended cowl, remove the pot from the stack.

 

What our experts say!

"The 316L Mi-FLEX 180mm x 32m COIL is an exceptional choice for both retail and trade customers. Our commitment to reliable delivery and competitive pricing makes this a standout product for anyone needing a top-quality flue liner."

The 316L Mi-FLEX 180mm x 32m COIL is designed for relining masonry chimneys to safely and efficiently vent fumes from various fuel-burning appliances.

National Flues is a leading supplier of fireplaces and flues across the UK, renowned for competitive pricing, reliable delivery, and excellent service to both retail and trade customers.

Our Rating Image
👀 3 viewing this product