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DM44 - 200mm ID x 600mm high access flue block (59-127682)

The DM44 Isokern access flue block provides a superior chimney solution for wood-burning stoves, open fires, and cookers. Crafted from natural pumice, this high-performance flue block ensures rapid heating and maintains optimal flue gas temperatures. Read more...
Now only £106.99
including free delivery Give us a call if you find it cheaper and we'll normally price match.
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At a Glance

  • 200mm internal diameter and 600mm high access design
  • Constructed from natural pumice for superior insulation
  • Innovative double-module system optimising flue gas temperatures
  • HETAS-approved, CE-marked, and backed by a 10-year warranty
  • Versatile compatibility with wood, solid fuel, oil, and gas appliances
  • Available in outer casing options: DM36, DM44, and DM54
  • Optional accessories available to further enhance system performance

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: sales@nationalflues.com

The DM44 - 200mm ID x 600mm high access flue block is part of the superior Isokern DM block system. Known for its high-quality construction, this double module system chimney maintains optimal flue gas temperatures and minimizes heat transfer to the outer casing. This feature ensures the longevity of your chimney by reducing the risk of cracking and subsequent leaking or staining.

The flue system is easy to install and comes in three outer casing sizes: DM36, DM44, and DM54. It is suitable for various applications including wood-burning stoves, open fires, and cookers using wood, solid fuel, oil, or gas. Note, it is not recommended for condensing appliances including Biomass & Pellets.

Made from pumice, a natural insulator, the DM44 assists in achieving the optimum temperature for flue gases quickly. This enhances the performance of your heating appliance and reduces the chances of condensation and soot build-up. HETAS-approved and CE-marked, this flue block stands out for safety and efficiency.

SKU: 59-127682

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.

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.

Technical Specifications
ModelDM44 - 200mm ID x 600mm high access block
Flue ID200mm
Height600mm
MaterialPumice
Warranty10 Years
CertificationsHETAS-approved, CE-marked
DesignationsEN1858 - T450 N1 D 3 G(00), EN1857 - T600 N2 D 3 G
Available Outer CasingsDM36, DM44, DM54
• Ensure proper clearances: 0mm on straights and 38mm on offsets when using the DM system. • Follow the installation guide thoroughly to avoid issues such as cracking or leakage. • Optional accessories like mounting brackets, sealants, and spacers can provide additional security and ease of installation. • When in doubt, professional installation is recommended to ensure optimal performance. • Always verify compatibility with your specific heating appliance before commencing installation.

The DM44 is designed to be part of a Double Module chimney system that helps maintain optimal flue gas temperatures and reduces heat transfer to the outer casing.

Yes, the DM44 features a straightforward installation process, making it simple and quick to build.

The Isokern DM system is available in three sizes: DM36, DM44, and DM54.

The DM44 is suitable for use with wood, solid fuel, oil, and gas. However, it is not recommended for condensing appliances such as Biomass and Pellets.

Absolutely. The DM44 is HETAS-approved and CE-marked, ensuring you have a safe and reliable product.

The double-module system maintains flue gas temperatures, minimizes heat transfer, and allows for thermal movement, reducing the risk of cracking or leaking.

Pumice is a natural insulator that helps flue gases reach their optimum temperature quickly and maintains chimney warmth, improving appliance performance and minimizing condensation and soot build-up.

 

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