Liner Accessories - 225mm ID s/steel adaptor
At a Glance
- Premium stainless steel construction for superior durability and heat resistance
- Seamless integration with Isokern Pumice Flue Liner systems
- Ideal for new builds, extensions, and chimney relining
- Compatible with woodstoves, gas coal-effect fires, and oil/gas boilers
- Insulating capabilities due to pumice design, reducing condensation and soot

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.
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 225mm ID Stainless Steel Adaptor is a crucial component of the Isokern flue liner range, which consists of over 15 sizes designed for diverse applications. Crafted from premium stainless steel, this adaptor is perfect for new builds, extensions, and relining existing chimneys. It is suitable for use with various appliances, including woodstoves, gas coal-effect fires, and oil and gas boilers.
Its compatibility with solid fuel appliances ensures it performs optimally under dry operating conditions.Constructed from pumice, a natural insulator, the Isokern flue liner quickly brings flue gases to their optimum temperature. This enables your heating appliance to reach peak performance shortly after ignition while maintaining the chimney's warmth for longer periods. This effective insulation reduces the likelihood of condensation and soot accumulation, ensuring a cleaner and more efficient chimney.The Isokern Liners are HETAS Approved and CE marked, meeting rigorous safety and quality standards.
Designated as Pumice Chimney Liner T600 N2 D 3 G, this product guarantees superior performance and durability. For detailed installation instructions, refer to our guides.
SKU: 59-127719
Technical Specifications | |
---|---|
SKU | 59-127719 |
Adaptor Size | 225mm ID / 290mm OD |
Material | Stainless Steel and Pumice |
Compatibility | Isokern Pumice Flue Liner range |
Designation DM System | EN1858 - T450 N1 D 3 G(00) |
Designation Liner System | EN1857 - T600 N2 D 3 G |
Warranty | 10 Years |
Distance To Combustibles | 0 on straights; 38mm on offsets on DM System |
Approval | HETAS Approved, CE marked |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Thursday, April 3rd. 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 225mm ID Stainless Steel Adaptor for Isokern Pumice Flue Liners is an essential addition for anyone looking to optimise their chimney's performance. At National Flues, we are rarely beaten on price and ensure reliable delivery nationwide for both retail and trade customers.
This 225mm ID Stainless Steel Adaptor is designed to seamlessly connect Isokern Pumice Flue Liners, enhancing the performance and durability of your chimney system.
National Flues is a leading supplier of fireplaces and flues across the UK, offering unbeatable prices, reliable delivery, and excellent customer service to both retail and trade customers.
