Joiner - Ø 300 (20-300-J)
At a Glance
- Seamless connection for MI-FLEX multi-fuel flue liners
Constructed from robust 316L stainless steel
Withstands temperatures up to 600°C
Compatible with wood (with <20% moisture), oil, gas, and smokeless coal
Fully compliant with Building Regulations Document J
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 Joiner - Ø 300 is a crucial accessory designed to join two pieces of MI-FLEX multi-fuel flexible flue liner seamlessly. Perfectly crafted to complement MI-FLEX 316 and 904 flexible flue liners, this joiner ensures a continuous and secure connection for an efficient full-system chimney. Adhering to Building Regulations Document J, this joiner must be used within a completely enclosed masonry chimney – timber or plasterboard enclosures are not permissible.
Capable of handling temperatures up to 600°C, it is ideal for wood with less than 20% moisture, smokeless coal, gas, and oil. When your chimney liner length exceeds the maximum available flex, the Joiner - Ø 300 offers the perfect solution, though it must not be used with gas liners. Maintenance is straightforward, requiring professional sweeping, ideally by a HETAS registered sweep, at least twice a year for solid fuel applications.
SKU: 20-300-J
| Technical Specifications | |
|---|---|
| SKU | 20-300-J |
| Material | 316L Stainless Steel |
| Colour Finish | Natural / Stainless Steel |
| Temperature Rating | Up to 600u00b0C |
| Fuel Compatibility | Wood (<20% moisture), Oil, Gas, Smokeless Coal |
| Certifications | HETAS, CE |
| Compliance | Building Regulations Document J |
