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DM44 - 200mm ID x 150mm offset block (59-127687)

The DM44 - 200mm ID x 150mm offset block from Isokern is engineered from natural pumice to deliver high thermal efficiency and safety. Ideal for stoves, open fires, and cookers, this premium offset block enhances chimney systems by maintaining optimal flue gas temperatures while offering robust performance. Explore innovative, high-quality chimney solutions with Isokern for dependable, industry-approved accessories and components.
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£85.49
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At a Glance

  • Made from natural pumice for superb insulation and thermal efficiency
  • Integral component of the Isokern DM chimney system – HETAS Approved and CE marked
  • Designed for stoves, open fires, and cookers burning wood, solid fuel, oil, or gas (non-condensing)
  • Ensures a safe 38mm clearance from combustibles on offset chimneys
  • Comes with detailed installation guides for a seamless setup

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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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 - 200mm ID x 150mm offset block is an integral part of the high-quality Isokern Double Module (DM) chimney system. This advanced system is engineered for optimal thermal efficiency and safety, making it an excellent choice for various heating appliances, including stoves, open fires, and cookers that burn wood, solid fuel, oil, or gas (excluding condensing appliances like Biomass and Pellets). Constructed from pumice, a natural insulator, this block maintains flue gas temperatures and prevents heat transference to the outer casing.

The double-wall design allows for thermal movement, significantly reducing the risk of cracking, leaking, and staining. The DM44 system is available in three sizes: DM36, DM44, and DM54, ensuring the perfect fit for your chimney requirements. HETAS Approved and CE marked, the Isokern DM system guarantees top-notch quality and performance.

For ease of installation, detailed guides are provided.

SKU: 59-127687

Technical Specifications
Dimensions440 x 500mm overall; 200mm ID x 150mm offset block; 86mm length with a 30u00b0 offset; 150mm height
MaterialPumice
ComplianceHETAS Approved, CE marked
Clearance38mm from combustibles on offset chimneys
Compatible AppliancesStoves, open fires, cookers burning wood, solid fuel, oil, or gas (non-condensing)
Warranty10 Years
The DM44 block includes a comprehensive installation guide with step-by-step instructions. Begin by verifying all measurements and ensuring the offset dimensions (86mm and 30° angle) are accurately aligned. Maintain the recommended 38mm clearance from combustibles for optimal safety. If there is any uncertainty, or if adjustments need to be made, consult the technical specifications or contact a professional installer. This care will ensure your chimney system operates safely and efficiently.

The DM44 offset block is used in the Isokern Double Module (DM) chimney system to maintain optimal flue gas temperatures and prevent heat transference, ensuring efficient and safe operation of your heating appliance.

The DM44 block is constructed from pumice, a natural insulator known for its excellent thermal properties, which helps in maintaining consistent flue gas temperatures.

The DM44 block is suitable for a variety of heating appliances, including stoves, open fires, and cookers that burn wood, solid fuel, oil, or gas. However, it is not suitable for condensing appliances like Biomass and Pellets.

The Isokern DM44 block is HETAS Approved and CE marked, ensuring compliance with strict safety and performance standards.

The insulating properties of pumice used in the DM44 block allow the flue gases to quickly reach their optimal temperature, enhancing the performance of your heating appliance shortly after lighting. It also helps maintain the chimney's warmth longer.

The Isokern DM system is available in three outer casing sizes: DM36, DM44, and DM54, catering to various installation requirements.

Detailed installation guides are provided with the DM44 block, making the process simple and straightforward. Ensure you follow these instructions carefully for proper installation.
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 150mm offset block buyers guide

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