MI-FLEX Adaptor - Ø 100 (20-100-MA)
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Fast deliveryMonday, November 17th*
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Best PriceCall us to beat any price you found online.
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At a Glance
- Crafted from 0.6mm 316 stainless steel
- Seamlessly connects rigid single wall flue systems with MI-FLEX flexible liners
- Compliant with Building Regulations Document J
- Supports appliances operating at up to 600°C
- Suitable for wood (<20% moisture), smokeless coal, gas, and oil
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.
- Bulk Purchasing Power: We sell a lot, so we can negotiate better rates with suppliers, passing the savings directly to you.
- Operational Efficiency: We have streamlined processes to reduce overhead.
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).
“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.
Have Questions?
Phone: 01670 206999
Email: sales@nationalflues.com
- Details
- Specs
- Install/Packs
- FAQs
The MI-FLEX Adaptor Ø 100 is expertly crafted from 0.6mm 316 stainless steel, designed to connect rigid single wall flue systems to MI-FLEX flexible flue liners of the same diameter. This highly durable adaptor is a key component in forming a complete chimney system when used with MI-FLEX 316 or 904 flexible flue liners. Compliant with Building Regulations Document J, it ensures a gas-tight seal when properly installed within a masonry chimney.
It supports appliances operating up to 600°C (T600 designation) and is suitable for wood with less than 20% moisture, smokeless coal, gas, and oil. The transition joint created by this adaptor must be securely fixed using fire cement, ceramic rope, or high-temperature sealant to ensure safety and efficiency. Regular maintenance, including annual sweeping by a competent person, is essential for optimal performance and longevity.
SKU: 20-100-MA
Delivery Information* +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.
About National Flues Ltd +
We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.
This is us — real advice over the phone, or at the counter, and real stock in our warehouse.
| Technical Specifications | |
|---|---|
| Material | 0.6mm 316 Stainless Steel |
| Design | Transitional joint between rigid single wall flue and MI-FLEX flexible liners |
| Compliance | Building Regulations Document J |
| Temperature Rating | Up to 600°C (T600) |
| Fuel Compatibility | Wood (<20% moisture), Smokeless Coal, Gas, Oil |
| Approvals | HETAS / CE |