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DM44 - 180mm ID x 300mm high flue block

Elevate your chimney system with the Isokern DM44 - a high-performance 180mm ID x 300mm high flue block crafted from premium natural pumice. Ideal for a range of heating appliances including wood stoves, solid fuel systems, and oil or gas heaters, this reliable flue block boasts a double-wall design... More...
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At a Glance

  • Premium natural pumice construction
  • Double-wall design maintains optimal flue gas temperature
  • HETAS approved and CE marked
  • Suitable for wood, solid fuel, oil, and gas appliances (excluding condensing systems)
  • Minimises condensation and soot build-up
  • Reliable thermal movement reducing crack and leak risks
Now only £37.49
Including VAT Buy with confidence. If you find this cheaper within 48 hours of checkout, we'll refund the difference.

 

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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.

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Have Questions?
Phone: 01670 206999
Email: [email protected]

The DM44 - 180mm ID x 300mm high flue block is a premium product within the Isokern Double Module (DM) System Chimney range. This high-quality flue block is crafted to ensure superior performance and longevity, making it an excellent choice for chimneys. The double-wall design retains flue gas temperatures while preventing heat transfer to the outer casing.

This unique structure allows for thermal movement, reducing the risk of cracking and potential leaks. Notably, the DM system is available in three outer casing sizes—DM36, DM44, and DM54—and is suitable for a wide range of applications, including wood, solid fuel, oil, and gas (excluding condensing appliances such as Biomass and Pellets). Constructed from natural pumice, the flue block has excellent insulating properties, ensuring that the chimney quickly reaches and maintains optimal operational temperatures.

This feature not only improves appliance performance but also minimizes condensation and soot build-up. Endorsed by HETAS and CE marked, the Isokern DM system is both reliable and compliant with industry standards.

SKU: 59-127068

Technical Specifications
Product TypeChimney Flue Block
ModelDM44
Inner Diameter180mm
Height300mm
Outer Dimension310 x 310mm
MaterialNatural Pumice
Warranty10 Years
System Designation (DM)EN1858 - T450 N1 D 3 G(00)
System Designation (Liner)EN1857 - T600 N2 D 3 G
ComplianceHETAS Approved, CE Marked
Fuel CompatibilityWood, Solid Fuel, Oil, Gas (excluding condensing appliances)
Installation Instructions: • Always ensure the chimney system is completely de-energised and cooled before starting installation. • Refer to the detailed installation manual provided with your DM44 flue block for step-by-step guidance. • Check that the surrounding area complies with recommended distances to combustibles (0mm on straights; 38mm on offsets for the DM System). • Secure the flue block carefully in position, ensuring that joints are properly sealed and aligned to prevent potential leaks. • It is advisable to have the installation performed or inspected by a qualified professional to ensure safety and maximum efficiency. • Be aware of thermal movement allowances; the double-wall design is engineered to accommodate expansion and contraction, reducing the risk of damage over time.

The DM44 flue block’s key features include its double-wall design, natural pumice construction for superior insulation, suitability for various fuels, and compliance with HETAS and CE standards.

The DM44 flue block is compatible with wood-burning stoves, open fires, inserts, and cookers using solid fuel, oil, or gas. It is not suitable for condensing appliances, including Biomass and Pellets.

Pumice is a natural insulator that helps quickly achieve and maintain optimal flue gas temperatures. This improves the heating appliance's performance and reduces the likelihood of condensation or soot build-up.

The DM44 flue block has an inner diameter of 180mm and an outer dimension of 310 x 310mm, with a height of 300mm.

Yes, the DM44 flue block is designed for straightforward installation. Detailed installation instructions are available to guide you through the process.

Yes, the Isokern DM system, including the DM44 flue block, is HETAS approved and CE marked, ensuring it meets high-quality and safety standards.

The double-wall design maintains flue gas temperatures while preventing heat transference to the outer casing, allowing for thermal movement which reduces the risk of cracks and leaks.
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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Read our buyers guide for this DM44 - 180mm ID x 300mm high flue block

National Flues Ltd Verdict

The DM44 - 180mm ID x 300mm high flue block is one of the best choices for your chimney system. Its exceptional thermal properties and robust construction ensure optimal performance. At National Flues, we rarely get beaten on price and offer reliable nationwide delivery to both retail and trade customers.

The DM44 - 180mm ID x 300mm high flue block is designed to safely and effectively channel flue gases from heating appliances such as wood stoves, open fires, and inserts, ensuring optimal performance and reducing condensation and soot build-up.

Isokern is renowned for its high-quality chimney systems, particularly its innovative use of pumice for optimal insulation. Trusted by professionals, Isokern products are designed to enhance the performance of heating appliances, ensuring safety and efficiency.

 

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Secure your DM44 flue block now and experience the ultimate in chimney system reliability.

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