Derwent Multifuel Stove - 5Kw - ECODesign with internal full height kit (136-DERWENT-inside)
Ready for installation. Designed for internal installation in two storey buildings. The flue runs through the inside of your property and exits through the roof. No existing chimney needed. Our experts offer a free design service if you need a variation on this system. Give us a call on 01670 206 999 if you think you might need a few changes to this standard kit.

At a Glance
- Efficient 5kW heat output for optimal home heating
EcoDesign approved and ideal for Smoke Control Areas
Integrated internal full height kit for seamless installation
Cleanburn and Airwash systems ensure clean, high-performance operation
Comes with a complete package for integrated installations with free design service
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, June 10th. 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.
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
Derwent Multifuel Stove - 5Kw - ECODesign with internal full height kit... Revolutionise your home heating with the eco-friendly Derwent Multifuel Stove - 5Kw - ECODesign with its internal full height kit. Designed for Smoke Control Areas, this stove offers efficient, clean-burning heat with advanced Cleanburn and Airwash systems.
Enjoy seamless integrated installation enhanced by our FREE design service. It's the smart, stylish, and sustainable choice for modern homeowners seeking superior performance and energy efficiency.
Features & Benefits
EcoDesign Approval
Guaranteed adherence to the highest energy efficiency and environmental standards.
Internal Full Height Kit
Ensures a flush and seamless appearance in integrated installations.
Cleanburn System
Provides a more complete burn, reducing emissions and enhancing performance.
Airwash System
Keeps the glass clean for consistent visibility and aesthetic appeal.
Versatile Installation Package
Designed to work in varied home layouts, whether inside or outside, single or multi-storey.
SKU: 136-DERWENT-inside
SKU | Product Name | Qty |
---|---|---|
37-125-005 | TWPro MB - Flat Adaptor - Ø 125 | 1 |
37-125-016 | TWPro MB - Adjustable Pipe 250-350mm - Ø 125 | 1 |
37-125-010 | TWPro MB - Pipe 1000mm - Ø 125 | 8 |
37-125-073 | TWPro MB - Ventilated Firestop Plate - Ø 125 | 2 |
58-125-075 | TWPro MB - Firestop Cover Plate (MB) - Ø 125 | 1 |
37-125-011 | TWPro MB - Pipe 500mm - Ø 125 | 1 |
37-125-112 | TWPro MB - Rain Cap with Mesh - Ø 125 | 1 |
12-15-LD-TILE | MI-Flash - No 1.5 Tile Black EPDM (125-225mm) LD-705x501 | 1 |
58-125-082 | TWPro MB - Storm Collar - Ø 125 | 1 |
13-MESHKIT-125 | Loft Mesh Kit (125mm) | 1 |
Technical Specifications | |
---|---|
Nominal Heat Output | 5kW |
Heat Output Range | 4-7.5kW |
Energy Efficiency Rating | A+ |
Wood Burning Efficiency | 81% |
CO Emissions | 0.09% @ 13% O2 |
Maximum Log Length | 480mm |
Flue Outlet | 5' Top or Rear |
Dimensions | 550mm (H) x 579mm (W) x 383mm (D) |
Weight | 86kg |
Eco Design Approved | Yes |
Smoke Control Exempt | Yes |
Cleanburn System | Yes |
Airwash System | Yes |
Direct Air Kit | Optional |
Grate Option | Optional |