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Screw-FIX Increaser - Ø 80-100mm

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This 0.6mm 316 stainless steel adaptor is meticulously designed to create a robust and secure transition from a single wall flue system to the MI-FLEX flexible flue liner. With a 25mm increase from the single wall to the flexible liner, it ensures a comprehensive connection that withstands temperatures up to 600°C.

£23.99 incl VAT

  •   Description  
  •   Product Details  

Introducing the Screw-FIX Increaser - Ø 80-100mm, a premium 0.6mm 316 stainless steel adaptor designed for seamless transitions between a rigid single wall flue system and MI-FLEX flexible flue liners. This increaser plays a vital role in establishing a secure, gas-tight connection and complies with Building Regulations Document J, ensuring the flue liner is fully enclosed within a masonry chimney. Suitable for appliances operating up to 600°C (T600 designation), it's versatile for use with wood (moisture <20%), smokeless coal, gas, and oil. Essential in creating a full chimney system, the Screw-FIX Increaser incorporates fire cement, ceramic rope, or high-temperature sealant for optimal performance. Maintenance is straightforward: simply ensure regular chimney sweeping by a competent person, ideally twice a year for solid fuel applications to avoid blockages and deposits.

  • SKU: 25-80-MR
  • Item: Screw-FIX Increaser - u00d8 80-100mm
  • Designation:: BSEN 1856-2 T600 N1 W V2 L50012 G
  • System:: MI-FLEX Accessories MF20
  • Material:: 316L
  • Colour Finish:: Stainless Steel / NATURAL
  • Fuels:: Wood, Oil, Gas, Smokeless coal
  • Approvals::
  • : CE / HETAS

What is it for?

The Screw-FIX Increaser - Ø 80-100mm is used to connect a rigid single wall flue system to a MI-FLEX flexible flue liner, ensuring a gas-tight transition and secure connection within a masonry chimney.

Brand Summary

National Flues is a premier UK supplier specialising in fireplaces and flues. Known for competitive pricing and reliable delivery, they cater to both retail and trade customers with secure online payments and trade accounts available.

National Flues Verdict

Our Screw-FIX Increaser - Ø 80-100mm is indispensable for a flawless flue system. With nationwide delivery and prices rarely beaten, National Flues serves both retail and trade customers, ensuring top-notch quality and reliable service.

Our Rating
9.7/10

FAQs

The Screw-FIX Increaser is crafted from high-quality 0.6mm 316 stainless steel, ensuring durability and strength.

Yes, it is suitable for wood (with less than 20% moisture), smokeless coal, gas, and oil appliances.

Absolutely, it complies with Building Regulations Document J, which mandates that the flexible flue liner must be fully enclosed within a masonry chimney.

It is recommended to use fire cement, ceramic rope, or high-temperature sealant to ensure a gas-tight seal.

The Screw-FIX Increaser is rated for use with appliances that operate up to 600°C (T600 designation).

Chimney systems should be inspected and cleaned at least once a year. For those using solid fuels, sweeping should ideally occur twice a year to ensure there are no blockages or deposits.

Sweeping should be performed by a competent person. For solid fuel applications, a list of HETAS registered sweeps is available at www.hetas.co.uk.