MI-FLEX Adaptor - Ø 250 (20-250-MAE)
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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 durable 0.6mm 316L stainless steel
- Securely connects single wall flue systems to MI-FLEX flexible liners
- High temperature tolerance up to 600°C for efficient multi-fuel use
- Suitable for wood (under 20% moisture), smokeless coal, gas, and oil
- Compliant with UK Building Regulations when installed in masonry chimneys
- Achieves a reliable gas‐tight seal with the proper sealants
- Low stock alert – act swiftly to secure this essential adaptor
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 250mm, made from high-quality 0.6mm 316 stainless steel, ensures a seamless connection between your single wall flue system and MI-FLEX flexible flue liners. This robust adaptor, part of our MF20 MI-FLEX accessories range, is ideal for multi-fuel applications, handling temperatures up to 600°C. Whether you’re using wood with less than 20% moisture content, smokeless coal, gas, or oil, this adaptor is designed for reliable performance within a masonry chimney.
Ensure a gas-tight seal using fire cement, ceramic rope, tape, or high-temperature sealant. Compliance with Building Regulations Document J is essential, and remember, no flexible flue should ever be visible outside the masonry chimney. Maintenance is straightforward: inspect and clean the system annually, with biannual sweeps recommended for solid fuel setups.
SKU: 20-250-MAE
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 | 316L Stainless Steel (0.6mm thick) |
| Nominal Diameter | Ø 250mm |
| Operating Temperature | Up to 600°C |
| Compliance | HETAS / CE; Building Regulations Document J |
| Fuels | Wood (under 20% moisture), Smokeless Coal, Gas, Oil |
| Seal Recommendation | Fire cement, Ceramic rope, High-temperature sealant, Tape |
| Installation | For use exclusively within masonry chimney enclosures |
| Product Code | 20-250-MAE |