Trustpilot
  • Pay in 3 interest-free payments
    with Paypal & Klarna
Filters
Close filters
Price Filter
Flue Diameter
Colour
Flue Part

TW Pro

TW Pro

TW Pro by MI Flues is a premium twin wall insulated chimney system engineered for high-performance heating appliances. Designed for wood burning stoves, multi-fuel stoves, gas, and commercial applications, TW Pro delivers exceptional draft performance, superior thermal efficiency, and industry-leading safety. Manufactured in the UK from high-grade stainless steel, this twin wall flue system offers quick installation, durable construction, and full compliance with EN1856-1 standards.

For installers and homeowners seeking a reliable, HETAS-approved twin wall chimney solution, TW Pro provides long-lasting performance, sleek aesthetics, and trusted British manufacturing quality.

  • TW Pro Matt Black 6" (150mm) Wall Support 210mm To 420mm

    TW Pro Matt Black 6″ (150mm) Wall Support 210mm To 420mm

    In Stock - Immediate Dispatch
    Our Price:
    £290.38 inc. VAT
  • TW Pro Matt Black 6" (150mm) Wall Support 50mm To 80mm

    TW Pro Matt Black 6″ (150mm) Wall Support 50mm To 80mm

    In Stock - Immediate Dispatch
    Our Price:
    £92.99 inc. VAT
  • TW Pro Matt Black 6" (150mm) Wall Support 80mm To 130mm

    TW Pro Matt Black 6″ (150mm) Wall Support 80mm To 130mm

    In Stock - Immediate Dispatch
    Our Price:
    £226.41 inc. VAT
  • TW Pro Matt Black 6" (150mm) Wall Support Corner 270mm To 520mm

    TW Pro Matt Black 6″ (150mm) Wall Support Corner 270mm To 520mm

    In Stock - Immediate Dispatch
    Our Price:
    £386.79 inc. VAT
  • TW Pro Matt Black Flat Increasing Adaptor 5" To 6" (125mm To 150mm)

    TW Pro Matt Black Flat Increasing Adaptor 5″ To 6″ (125mm To 150mm)

    In Stock - Immediate Dispatch
    Our Price:
    £225.87 inc. VAT
  • TW Pro Matt Black Single Wall To Twin Wall Increaser 5" To 6" (125mm To 150mm)

    TW Pro Matt Black Single Wall To Twin Wall Increaser 5″ To 6″ (125mm To 150mm)

    In Stock - Immediate Dispatch
    Our Price:
    £272.51 inc. VAT
  • TW Pro Matt Black Single Wall To Twin Wall Increaser 6" To 7" (150mm To 175mm)

    TW Pro Matt Black Single Wall To Twin Wall Increaser 6″ To 7″ (150mm To 175mm)

    In Stock - Immediate Dispatch
    Our Price:
    £122.72 inc. VAT
  • TW Pro Stainless Steel 6" (150mm) 800mm Length

    TW Pro Stainless Steel 5″ (125mm) 1000mm Length

    In Stock - Immediate Dispatch
    Our Price:
    £255.05 inc. VAT
  • TW Pro Stainless Steel 6" (150mm) 100mm Length

    TW Pro Stainless Steel 5″ (125mm) 100mm Length

    In Stock - Immediate Dispatch
    Our Price:
    £103.42 inc. VAT
  • TW Pro Stainless Steel 5" (125mm) 135 Degree Tee

    TW Pro Stainless Steel 5″ (125mm) 135 Degree Tee

    In Stock - Immediate Dispatch
    Our Price:
    £494.92 inc. VAT
  • TW Pro Stainless Steel 5" (125mm) 15 Degree Bend

    TW Pro Stainless Steel 5″ (125mm) 15 Degree Bend

    In Stock - Immediate Dispatch
    Our Price:
    £177.44 inc. VAT
  • TW Pro Stainless Steel 5" (125mm) 1Pc Round Finishing Plate 90 Degrees

    TW Pro Stainless Steel 5″ (125mm) 1Pc Round Finishing Plate 45 Degrees

    In Stock - Immediate Dispatch
    Our Price:
    £65.51 inc. VAT
  • TW Pro Stainless Steel 5" (125mm) 1Pc Round Finishing Plate 90 Degrees

    TW Pro Stainless Steel 5″ (125mm) 1Pc Round Finishing Plate 90 Degrees

    In Stock - Immediate Dispatch
    Our Price:
    £86.40 inc. VAT
  • TW Pro Stainless Steel 6" (150mm) 100mm Length

    TW Pro Stainless Steel 5″ (125mm) 250mm Length

    In Stock - Immediate Dispatch
    Our Price:
    £114.76 inc. VAT
  • TW Pro Stainless Steel 5" (125mm) 2Pc Round Fixed Finishing Plate 45 Degrees

    TW Pro Stainless Steel 5″ (125mm) 2Pc Round Fixed Finishing Plate 45 Degrees

    In Stock - Immediate Dispatch
    Our Price:
    £65.51 inc. VAT
  • TW Pro Stainless Steel 5" (125mm) 2Pc Round Fixed Finishing Plate 45 Degrees

    TW Pro Stainless Steel 5″ (125mm) 2Pc Round Fixed Finishing Plate 90 Degrees

    In Stock - Immediate Dispatch
    Our Price:
    £65.51 inc. VAT
  • TW Pro Stainless Steel 5" (125mm) 30 Degree Bend

    TW Pro Stainless Steel 5″ (125mm) 30 Degree Bend

    In Stock - Immediate Dispatch
    Our Price:
    £177.44 inc. VAT
  • TW Pro Stainless Steel 5" (125mm) 45 Degree Bend

    TW Pro Stainless Steel 5″ (125mm) 45 Degree Bend

    In Stock - Immediate Dispatch
    Our Price:
    £177.44 inc. VAT
  • TW Pro Stainless Steel 6" (150mm) 500mm Length

    TW Pro Stainless Steel 5″ (125mm) 500mm Length

    In Stock - Immediate Dispatch
    Our Price:
    £199.62 inc. VAT
  • TW Pro Stainless Steel 6" (150mm) 800mm Length

    TW Pro Stainless Steel 5″ (125mm) 800mm Length

    In Stock - Immediate Dispatch
    Our Price:
    £255.05 inc. VAT
  • TW Pro Stainless Steel 5" (125mm) 90 Degree Bend

    TW Pro Stainless Steel 5″ (125mm) 87 Degree Bend

    In Stock - Immediate Dispatch
    Our Price:
    £301.66 inc. VAT