DM36 - 360mm square x 250mm high access casing (59-130712)
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Fast deliveryMonday, November 17th*
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Best PriceCall us to beat any price you found online.
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At a Glance
- Constructed from natural pumice for superior insulation
- Double-wall design reduces thermal stress and prevents leaks
- HETAS approved and CE marked for industry-leading safety standards
- Versatile design suitable for stoves, open fires, and cookers (wood, oil, solid fuel, gas)
- Features a 150mm internal diameter access hole for easy inspection and maintenance
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: sales@nationalflues.com
- Details
- Specs
- Install/Packs
- FAQs
The DM36 360mm square x 250mm high access casing is part of the Isokern Double Module (DM) block system, renowned for its exceptional thermal insulation and durability. Constructed from natural pumice, this casing maintains optimal flue gas temperatures while preventing heat transference to the outer casing. The unique double-wall structure allows for thermal movement, minimising the risk of cracks and leaks.
Quick and easy to install, the DM36 is suitable for a wide range of heating appliances including stoves, open fires, and cookers using wood, solid fuel, oil, or gas (excluding condensing appliances like Biomass and Pellets). Approved by HETAS and CE marked, the Isokern DM system ensures superior performance and safety, keeping your chimney warmer for longer and reducing condensation and soot build-up.
SKU: 59-130712
Delivery Information* +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.
About National Flues Ltd +
We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.
This is us — real advice over the phone, or at the counter, and real stock in our warehouse.
| Technical Specifications | |
|---|---|
| Dimensions | 360mm square x 250mm high |
| Internal Access Hole | 150mm diameter |
| Material | Natural Pumice |
| Certification | HETAS Approved, CE marked |
| Warranty | 10 Years |
| Suitable For | Stoves, open fires, cookers (wood, oil, solid fuel, gas; excluding condensing appliances) |
| Design | Double-wall for enhanced thermal performance |