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Bolted MI-FLEX Adaptor - Ø 100

National Flues presents the premium Bolted MI-FLEX Adaptor – Ø 100, engineered in high-grade 316 stainless steel. This quality chimney adaptor offers a robust solution for connecting rigid flue systems to MI-FLEX flexible liners. Ideal for wood, gas, coal, and oil applications, this product guarante... More...
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At a Glance

  • 0.6mm thick 316 stainless steel for superior durability
  • Seamless connection between rigid single-wall systems and MI-FLEX liners
  • Temperature rating up to 600°C (T600 designation)
  • Complies with Building Regulations Document J
  • Suitable for wood (with less than 20% moisture), smokeless coal, gas, and oil appliances
Now only £22.99
Including VAT Buy with confidence. If you find this cheaper within 48 hours of checkout, we'll refund the difference.

 

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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:

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Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.

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Have Questions?
Phone: 01670 206999
Email: [email protected]

The Bolted MI-FLEX Adaptor - Ø 100 is crafted from high-quality 0.6mm 316 stainless steel, designed to provide a seamless and secure connection between rigid single wall flue systems and MI-FLEX flexible flue liners of the same diameter. Ideal for multi-fuel applications, this adaptor ensures compatibility with appliances burning wood (with less than 20% moisture), smokeless coal, gas, and oil. It is essential that the adaptor is installed within a masonry chimney, complying with Building Regulations Document J, to maintain safety and efficiency.

Given its suitability for temperatures up to 600°C (T600 designation), this adaptor meets the demands of various heating appliances. Reinforcing the gas-tight seal, the use of fire cement, ceramic rope, or high-temperature sealant ensures a secure and safe installation.

SKU: 20-100-BL-MAE

Technical Specifications
Material0.6mm 316 Stainless Steel
Compatible Diameteru00d8 100mm
Temperature RatingUp to 600u00b0C (T600 designation)
ApplicationAdaptor for connecting rigid single-wall flue systems to MI-FLEX flexible flue liners
Building RegulationsCompliant with Document J
Fuel CompatibilityWood (with less than 20% moisture), smokeless coal, gas, oil
The Bolted MI-FLEX Adaptor must be installed within a masonry chimney, ensuring that the MI-FLEX liner is entirely enclosed as per Building Regulations Document J. Prior to installation, secure a gas-tight seal by applying fire cement, ceramic rope, or a high-temperature sealant. It is critical not to use chemical cleaners or mild steel tools on stainless steel components to avoid damage. Always consult the manufacturer's guidelines and adhere to local safety regulations during installation.

The adaptor is made of 0.6mm thick 316 stainless steel, known for its strength and corrosion resistance.

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

Yes, it complies with Building Regulations Document J, ensuring that the flexible flue liner is entirely enclosed within a masonry chimney.

The adaptor is designed to withstand temperatures up to 600°C (T600 designation).

The adaptor must be installed inside a masonry chimney, and a gas-tight seal should be secured using fire cement, ceramic rope, or high-temperature sealant.

The system should be inspected and cleaned at least once a year, with more frequent sweeping recommended for solid fuel appliances—ideally twice a year.

No, under no circumstances should chemical cleaners or mild steel tools be used to sweep stainless steel chimneys. Always use appropriate cleaning methods.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, April 4th. If you need faster stove or fireplace delivery please give us a call. We can often 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. Mi-Flex offers a lifetime guarantee. 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. If you find it cheaper within 48 hours, we'll refund the difference.

Read our buyers guide for this Bolted MI-FLEX Adaptor - Ø 100

National Flues Ltd Verdict

Our 0.6mm 316 stainless steel Bolted MI-FLEX Adaptor is a reliable choice for both retail and trade customers looking for seamless flue system transitions. Rarely beaten on price and with reliable nationwide delivery, National Flues is your go-to supplier for quality chimney accessories.

The Bolted MI-FLEX Adaptor - Ø 100 is used to create a secure connection between rigid single-wall flue systems and MI-FLEX flexible flue liners.

National Flues is a leading supplier of fireplaces and flues across the UK. Known for competitive pricing, reliable delivery, and exceptional service, they cater to both retail and trade customers, providing high-quality products that meet all regulatory standards.

 

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Order your Bolted MI-FLEX Adaptor now and experience a safe, efficient and regulation-compliant chimney connection!

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