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DM44 - 200mm ID x 100mm offset block (59-127686)

Discover the DM44 - 200mm ID x 100mm Offset Block by Isokern, a premium solution for chimney flue systems made from natural pumice. This high-performance offset block is designed to optimise heat retention, ensuring your stove, insert, or open fire operates at peak efficiency. Engineered to meet HETAS and CE standards, the DM44 offers exceptional safety and reliability. Ideal for a range of heating appliances, this product stands out as a versatile and efficient choice in chimney installations.
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£74.99
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At a Glance

  • Made from natural pumice for superior insulation
  • Double wall design maintains optimal flue gas temperatures
  • HETAS approved and CE marked for high safety standards
  • Versatile design suitable for stoves, open fires, and cookers
  • Compatible with multiple outer casing sizes: DM36, DM44, DM54

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.

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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:

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

The DM44 - 200mm ID x 100mm offset block is an integral part of the Isokern Pumice chimney flue system. This high-quality system chimney features a double wall design that ensures optimal flue gas temperatures while preventing heat transference to the outer casing. The unique construction provides the flexibility needed for thermal movement, thereby reducing the risk of cracks, leaks, or stains.

Quick and easy to assemble, the DM44 comes in three outer casing sizes: DM36, DM44, and DM54.Made from pumice, a natural insulator, this block ensures your chimney retains heat longer, aiding appliance performance and minimizing condensation and soot deposits. This versatility makes it suitable for various heating appliances, including inserts, stoves, open fires, and cookers burning wood, solid fuel, oil, or gas (excluding condensing appliances like Biomass and Pellets).The Isokern DM system is both HETAS approved and CE marked, meeting the highest safety and performance standards. For detailed installation instructions, please refer to our comprehensive guides.

SKU: 59-127686

Technical Specifications
Product NameDM44 - 200mm ID x 100mm Offset Block
MaterialPumice
Inner Diameter200mm
Offset Height100mm
Outer Casing OptionsDM36, DM44, DM54
Offset Details56mm depth, 30° offset
Warranty10 Years
Distance To Combustibles0mm on straights; 38mm on offsets (DM System)
• Read the comprehensive installation guides provided to ensure a proper setup. • For DM system installations, maintain a minimum clearance of 38mm to combustible materials on offset sections. • Verify that all components are securely assembled to facilitate safe and efficient performance. • Seek professional assistance if there is any uncertainty during the installation process.

The DM44 is suitable for use with inserts, stoves, open fires, and cookers burning wood, solid fuel, oil, or gas. However, it is not suitable for condensing appliances, including Biomass and Pellets.

The double wall design of the DM44 helps maintain optimal flue gas temperatures and prevents heat transference to the outer casing, reducing the risk of cracks, leaks or stains.

Pumice is a natural insulator, which allows the flue gases to reach optimal temperature quickly and maintains the heat within the chimney for longer periods, improving performance and minimizing condensation and soot build-up.

Yes, the Isokern DM system is HETAS approved and CE marked, ensuring it meets high safety and performance standards.

For accurate installation, refer to the comprehensive installation instructions provided in our guides. Ensure a minimum distance of 38mm to combustibles on offset chimneys.

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

Pumice's natural insulating properties keep the chimney's flue gases at optimal temperature quickly and retain the heat longer, enhancing appliance performance and reducing condensation and soot build-up.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, April 30th. 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 on a retail basis. Give us a call if you find it cheaper and want to buy from us.

Read our review in our DM44 - 200mm ID x 100mm offset block buyers guide

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Don't wait – secure the DM44 offset block today for a safer, more efficient chimney system.

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