Screw-FIX Flex Joiner - Ø 100 (25-100-J)
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Fast deliveryTuesday, October 28th*
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Price matchWe’ll match like-for-like
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Delivery Information* +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, October 28th. This is based on current lead times. Bear in mind that it is a busy time of year. 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 on 01670 206 999. 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.
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.
At a Glance
- Secure, airtight connection for multi-fuel flexible flue liners
- Complies with Building Regulations Document J and CE/HETAS standards
- Constructed in high-grade 316L stainless steel for enhanced durability
- Withstands high temperatures up to 600°C (T600 rating)
- Ideal for extending flue liners when the available flex length is insufficient
- Versatile compatibility with wood (<20% moisture), smokeless coal, gas, and oil appliances
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]
- Details
- Specs
- Install
- FAQs
The Screw-FIX Flex Joiner - Ø 100 is an indispensable accessory for anyone installing or extending a flexible flue liner system. Specifically designed for seamless integration with MI-FLEX 316 and 904 multi-fuel flexible flue liners, this joiner ensures a secure, airtight connection. An essential component for creating a full chimney system, it complies with Building Regulations Document J, ensuring your flue liner is safely enclosed within a masonry chimney.
Suitable for use with wood (moisture <20%), smokeless coal, gas, and oil appliances, it can handle temperatures up to 600°C (T600 designation). The joiner's robust design ensures longevity and reliable performance, making it a great choice for both residential and commercial installations. Regular maintenance of the chimney system, including sweeping at least once a year (twice if using solid fuel), ensures long-term efficiency and safety.
Remember, this joiner should only be used if the chimney liner length exceeds the maximum available flex length and must not be used on gas liners.
SKU: 25-100-J
| Technical Specifications | |
|---|---|
| SKU | 25-100-J |
| Material | 316L Stainless Steel |
| Size | Ø 100 mm |
| Temperature Rating | T600 (up to 600°C) |
| Compliance | CE, HETAS, Building Regulations Document J |
| System Compatibility | MI-FLEX 316 and 904 multi-fuel flexible flue liners |
What our experts say!
"The Screw-FIX Flex Joiner Ø 100 is a top-tier product in our range of flue accessories. Its robust design and compatibility with MI-FLEX liners ensure a reliable and efficient chimney system. With nationwide delivery and excellent customer support, National Flues is your go-to supplier for both retail and trade customers."
The Screw-FIX Flex Joiner - Ø 100 is designed to securely join two pieces of multi-fuel flexible flue liner when the chimney liner length exceeds the maximum available flex length.
National Flues is a trusted supplier of fireplaces and flues in the UK, providing reliable products and services to both retail and trade customers. With a commitment to superior quality, competitive pricing, and dependable nationwide delivery, National Flues ensures all your fireplace and flue needs are met with excellence.
