Joiner - Ø 150
At a Glance
- Constructed from durable 316L stainless steel for longevity and reliability
- Seamless compatibility with MI-FLEX multi-fuel flexible flue liners (316 and 904)
- Withstands high temperatures up to 600°C (T600 designation) ensuring robust performance
- HETAS and CE approved, meeting stringent safety and compliance standards
- Specially engineered for wood (below 20% moisture), smokeless coal, and oil applications (not for gas liners)
- Essential for extending your chimney liner when maximum flex length is exceeded

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 Joiner Ø 150 is a highly durable and essential accessory designed to join two sections of MI-FLEX multi-fuel flexible flue liners. Perfect for use with MI-FLEX 316 and 904 liners, this joiner ensures a complete and efficient chimney system. Compliant with Building Regulations Document J, this joiner is ideal for use with wood (below 20% moisture), smokeless coal, gas, and oil appliances up to 600°C (T600 designation).
It is crucial that the flexible flue liner is installed entirely within a masonry chimney, as non-masonry enclosures such as timber or plasterboard are not acceptable. Regular maintenance, including annual chimney sweeping by a competent person, ensures longevity and performance. For solid fuel applications, refer to HETAS registered sweepers to maintain your system in top condition.
SKU: 20-150-J
Technical Specifications | |
---|---|
SKU | 20-150-J |
Product Name | Joiner - u00d8 150 |
Material | 316L Stainless Steel |
Diameter | 150mm |
Temperature Rating | Up to 600u00b0C (T600) |
Certifications | HETAS / CE |
System | MI-FLEX Accessories MF20 |
Fuels Compatible | Wood (below 20% moisture), Smokeless Coal, Oil (Not for gas liners) |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, April 8th. 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.
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National Flues Ltd Verdict
The Joiner Ø 150 is an essential accessory for any MI-FLEX multi-fuel installation. Reliable and robust, it's perfect for extending your flue liner system. National Flues delivers this high-quality product nationwide, catering to both retail and trade customers. Shop with confidence!
The Joiner Ø 150 is designed to connect two sections of MI-FLEX multi-fuel flexible flue liners, ensuring a secure and compliant installation.
National Flues is a leading supplier of fireplaces and flues in the UK, offering reliable delivery and competitive pricing to both retail and trade customers. Trusted for quality and service, National Flues ensures every customer gets the best products and support.
