DM44 - 180mm ID x 300mm high flue block (59-127068)
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
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, July 1st. This is based on current delivery times for this product. Delivery for products not in our warehouses can be delayed because of third party carriers. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days then please give us a call. We can sometimes 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 and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. 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.
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 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 Type | Chimney Flue Block |
| Model | DM44 |
| Inner Diameter | 180mm |
| Height | 300mm |
| Outer Dimension | 310 x 310mm |
| Material | Natural Pumice |
| Warranty | 10 Years |
| System Designation (DM) | EN1858 - T450 N1 D 3 G(00) |
| System Designation (Liner) | EN1857 - T600 N2 D 3 G |
| Compliance | HETAS Approved, CE Marked |
| Fuel Compatibility | Wood, Solid Fuel, Oil, Gas (excluding condensing appliances) |
