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MI-FLEX Adaptor - Ø 125 (20-125-MAE)

National Flues proudly offers the MI-FLEX Adaptor - Ø 125, a premium stainless steel flue adapter expertly designed for secure and compliant connections between single wall systems and MI-FLEX flexible liners. Ideal for wood, oil, gas, and smokeless coal appliances, this adapter is a reliable accessory for your flue system, ensuring robust performance and peace of mind. Search our range of flue accessories to complete your installation with the highest quality products available in the market.
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£18.99
Give us a call if you find it cheaper and we'll try to price match.

 

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At a Glance

  • Secure transitional connection
  • Crafted from high-quality 316L stainless steel
  • 0.6mm robust construction
  • Compliant with Building Regulations Document J
  • Suitable for wood (<20% moisture), smokeless coal, oil, and gas appliances
  • Withstands temperatures up to 600°C

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.
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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.

Free Delivery Over £100: Orders over £100 are free delivery (call us if delivery is required outside the mainland UK).

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

The MI-FLEX Adaptor - Ø 125, crafted from 0.6mm 316 stainless steel, serves as a vital transitional component for connecting rigid single wall connecting flue systems to MI-FLEX flexible flue liners. This high-quality adaptor is ideally designed for use with MI-FLEX 316 and 904 flexible flue liners, ensuring robust connections that comply with Building Regulations Document J. These regulations mandate that flexible flue liners be fully enclosed within a masonry chimney, ruling out non-masonry enclosures such as timber or plasterboard.

Hardy enough to withstand temperatures up to 600°C, this adaptor is versatile for wood (<20% moisture), smokeless coal, gas, and oil appliances.

SKU: 20-125-MAE

Technical Specifications
ModelMI-FLEX Adaptor - u00d8 125
Material316L Stainless Steel
Thickness0.6mm
Temperature ResistanceUp to 600u00b0C
ComplianceBuilding Regulations Document J, HETAS / CE
Compatible SystemsMI-FLEX 316 and 904 Flexible Flue Liners
Fuel TypesWood (<20% moisture), Oil, Gas, Smokeless Coal
Installation of the MI-FLEX Adaptor - Ø 125 should be carried out by a competent installer. Ensure that all connections between the rigid single wall system and the MI-FLEX flexible liner are securely fastened and fully enclosed within a masonry chimney, as mandated by Building Regulations. Do not attempt installation in non-masonry settings such as timber or plasterboard enclosures. Follow the manufacturer’s guidelines meticulously and inspect the complete flue system annually. If any adjustments are needed or if there is any doubt, consult a HETAS registered professional. Always ensure that the appropriate sealing and support accessories are used to promote maximum performance and safety.

The MI-FLEX Adaptor is crafted from 0.6mm thick 316 stainless steel, ensuring durability and high-temperature resistance.

Yes, this adaptor is suitable for use with wood (<20% moisture), smokeless coal, gas, and oil appliances.

Absolutely. The MI-FLEX Adaptor complies with Building Regulations Document J, which requires that flexible flue liners be fully enclosed within a masonry chimney.

The system should be inspected and maintained yearly, but chimneys serving solid fuel appliances should be swept at least twice a year – at the end of the heating season and before the new one begins.

No, chemical cleaners and mild steel tools should not be used on stainless steel chimneys. It’s best to use appropriate sweeping tools.

No, Building Regulations require that flexible flue liners only be installed fully enclosed in a masonry chimney.

Maintenance should be carried out by a competent person. For solid fuel appliances, it’s recommended to use a HETAS registered sweep.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, April 30th. 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 on a retail basis. Give us a call if you find it cheaper and want to buy from us.

Read our review in our MI-FLEX Adaptor - Ø 125 buyers guide

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Choose the MI-FLEX Adaptor - Ø 125 today for a secure, reliable, and regulation-compliant flue connection.

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