Increasing MI-FLEX Adaptor - Ø 125-Ø 175 (20-125-MRD)
At a Glance
- 0.6mm 316 stainless steel construction
Increases flue diameter from Ø125mm to Ø175mm (50mm increase)
Durable, high-temperature resistance up to 600°C (T600 designation)
Compatible with wood (<20% moisture), oil, gas, and smokeless coal
BSEN 1856-2 T600, HETAS & CE compliant; Building Regulations Document J approved
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, July 1st. This is based on current delivery times for this product. Delivery for products not in our warehouses can be delayed because of third party carriers. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days then please give us a call. We can sometimes 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 and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. 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.
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: [email protected]
- Info
- Specs
- Install
- FAQs
The Increasing MI-FLEX Adaptor - Ø125mm to Ø175mm from National Flues is a must-have for any chimney setup. This 0.6mm 316 stainless steel adaptor serves as a transitional joint that effortlessly connects a ridged single wall flue system to MI-FLEX flexible flue liners. Designed to boost performance and improve system integrity, this adaptor increases the diameter by 50mm, accommodating a variety of fuel types including wood (with moisture <20%), smokeless coal, gas, and oil.
Engineered to withstand temperatures up to 600°C (T600 designation), it ensures a gas-tight seal with the use of fire cement, ceramic rope, or high-temperature sealant. Building Regulations Document J compliance guarantees safe and effective installation within a masonry chimney. Regular maintenance, such as sweeping and inspections done by a competent person, ensure longevity and optimal performance.
SKU: 20-125-MRD
| Technical Specifications | |
|---|---|
| Material | 316L Stainless Steel |
| Thickness | 0.6mm |
| Diameter Conversion | u00d8125mm to u00d8175mm |
| Temperature Rating | Up to 600u00b0C (T600) |
| Fuel Compatibility | Wood (<20% moisture), Oil, Gas, Smokeless Coal |
| Certifications | BSEN 1856-2 T600, HETAS, CE |
| System | MI-FLEX Accessories MF20 |
| Compliance | Building Regulations Document J |
