Unit 3 Gwaelod y Garth Industrial Estate, Gwaelod y Garth, Cardiff, CF15 9AA
02920 810608


The UK's Best selling flexible flue Liner
A double skinned flexible flue liner suitable for relining within a masonry chimney. Flue liner is suitable for use with burning gas, oil, coal, coke, cured dry logs, cured dry peat. The Mi-flex comes in multiple grades of steel, with varying lengths and thicknesses.

Product Details

  • High-Quality Construction: Double-skinned, stainless steel liner for masonry chimneys.
  • Fuel Versatility: Suitable for gas, oil, coal, coke, and cured dry logs/peat.
  • Certifications: HETAS endorsed and CE approved.
  • Installation Tips: Verify fit, sweep chimney, remove pot if necessary, install from top, use Nose Cone and assistance.
  • Maintenance: Annual chimney sweeping recommended.
  • Reliable Choice: Mi-Flues Mi-FLEX offers durability in various grades and sizes.

TWPRO fit system (Black)

Upgrade your heating with the TWPRO Fit System (Black)
Opt for reliability with the TWPRO Fit System (Black), designed exclusively for solid fuel and gas/oil appliances. This 150mm/6" diameter, 250mm length system promises safety with a required 50mm clearance from combustibles and 25mm rockwool insulation.

Product Details

  • Brand Specific: TW-Pro systems aren’t compatible with other brands.
  • Size: Features a 150mm/6″ internal diameter, 250mm length.
  • Clearance: Requires 50mm distance from combustibles.
  • Uses: Ideal for various heating appliances.
    Insulation: Contains 25mm compressed rockwool.
  • Certifications: HETAS Approved, CE marked.
  • Stability: Uses a Locking Band for secure construction.
  • Includes: Locking band provided.

Connecting Pipes

Seamless Integration with Flue Connecting Pipes
Ensure a secure, durable connection in your heating setup with our Flue Connecting Pipes. Designed for optimal compatibility and ease of installation, these pipes provide a steadfast link between your appliance and the flue system.

Product Details

  • High-quality Material: Built to last, each connecting pipe is fabricated from top-tier materials, ensuring longevity and resistance to wear and tear.
  • Optimal Fit: Designed meticulously, these pipes fit snugly, guaranteeing minimal leakage and maximiSing efficiency.
  • Easy Installation: With user-friendly features, the installation process becomes straightforward and hassle-free, reducing setup time.
  • Versatility: Compatible with a variety of heating appliances, making them a versatile addition to any heating assembly.
  • Safety First: Meeting rigorous standards, these pipes are constructed to prioritiSe user safety, preventing any hazardous emissions.
  • Maintenance Simplicity: Their design not only supports a secure connection but also facilitates easier maintenance and cleaning routines.


The Epitome of Warmth and Comfort
Experience unparalleled warmth and a cozy ambiance with MI-Fires Stoves. Renowned for their impeccable design and efficient heating capabilities, these stoves are the perfect centerpiece for any room.

Product Details

  • Sophisticated Design: Crafted with precision, each MI-Fires stove boasts a contemporary design that seamlessly integrates into various interior decors.
  • Powerful Heating: Utilizsing advanced heating technology, these stoves provide consistent and comfortable warmth, making chilly days a thing of the past.
  • Eco-friendly: MI-Fires stoves prioritise environmental sustainability, ensuring clean burning with reduced emissions.
  • User-friendly Features: From easy ignition to adjustable heat settings, every stove is designed with user convenience in mind.
  • Safety Commitment: Equipped with safety features such as overheat protection and secure door latches, these stoves ensure peace of mind for every user.
  • Durable Construction: Made with high-quality materials, MI-Fires stoves are built to withstand years of usage, guaranteeing long-lasting performance.

Contact us on our range of MI-Flues Parts Below: