DM54 - 300mm ID x 300mm high flue block (59-129033)

At a Glance
- Premium 300mm ID x 300mm high flue block from the Isokern DM range
Crafted from natural pumice for superior thermal insulation
Dual-wall design supports thermal movement and minimises cracking
HETAS approved and CE marked for assured safety and quality
Versatile compatibility with stoves, inserts, open fires, and cookers burning wood, oil, and gas
Quick and straightforward assembly for time-efficient installation
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 DM54 300mm ID x 300mm high flue block, part of our premium Isokern DM range, is a top-of-the-line System Chimney designed with durability and performance in mind. Crafted from natural pumice, this dual-module system ensures optimal flue gas temperatures while mitigating exterior heat transfer. Its double wall construction effectively supports thermal movement, reducing cracking and leakage.
Ideal for stoves, inserts, open fires, and various cookers burning wood, solid fuel, oil, and gas (excluding condensing appliances). With rapid and straightforward assembly, it's a builder's favorite. The DM54 is available in three sizes for tailored installation: DM36, DM44, and DM54.
Trust in its HETAS approval and CE marking for safe, high-performance operation. Experience the superior insulating properties of pumice, ensuring quick heating and long-lasting warmth while minimising condensation and soot build-up.
SKU: 59-129033
Technical Specifications | |
---|---|
Model | DM54 |
Internal Diameter | 300mm |
Height | 300mm |
Material | Natural Pumice |
Construction | Double Wall |
Certifications | HETAS approved, CE marked |
Warranty | 10 Years |
Suitable For | Stoves, inserts, open fires, cookers (excluding condensing appliances) |
System Compatibility | Available in DM36, DM44, and DM54 sizes |
Installation Clearance | 0mm on straights; 38mm on offsets in DM System |