Large Tinderbox Multifuel Stove, 5kW, ECODesign with single storey extension kit (137-LMF-TBOX-single)
Ready for installation. This package includes everything you need to install your stove in a single storey building. Perfect for garden rooms, extensions or one-storey homes. No existing chimney required. Our experts provide 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
- EcoDesign certified for low emissions and high efficiency
Multifuel capability for versatile heating options
Ideal for compact spaces with a streamlined single storey extension kit
Complete installation package with free design consultation
Robust construction ensuring long-lasting performance and safety
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, July 25th. This is based on current lead times for this product. 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 on 01670 206 999. 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.
Best 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]
- Summary
- Specs
- Install
- FAQs
Large Tinderbox Multifuel Stove, 5kW, ECODesign :: with single storey extension kit :: with single... Discover the ultimate in eco-friendly heating with the Large Tinderbox Multifuel Stove, 5kW, ECODesign. This package, complete with a single storey extension kit and backed by our free design service, is engineered for efficiency and style.
Enjoy the flexibility of multifuel operation, ensuring you can heat your home with a range of fuel choices while meeting stringent emissions standards. Perfect for modern, compact spaces, this stove is designed to upgrade your living environment with contemporary aesthetics and robust performance.
Features & Benefits
Multifuel Capability
Choose between various fuel types for maximum flexibility and cost-effectiveness.
EcoDesign Certification
Achieve efficient heating while complying with strict environmental emission standards.
Single Storey Extension Kit
Optimally designed for compact spaces, ensuring smooth installation without excess clutter.
Free Design Service
Receive expert advice to tailor the stove installation to your space, enhancing both functionality and style.
Robust Build Quality
Enjoy reliable and safe performance throughout the life of your appliance.
SKU: 137-LMF-TBOX-single
SKU | Product Name | Qty |
---|---|---|
37-125-005 | TWPro MB - Flat Adaptor - Ø 125 | 1 |
37-125-010 | TWPro MB - Pipe 1000mm - Ø 125 | 3 |
37-125-011 | TWPro MB - Pipe 500mm - Ø 125 | 1 |
37-125-112 | TWPro MB - Rain Cap with Mesh - Ø 125 | 1 |
58-125-096 | TWPro MB - Finishing Plate 0°-30° - Ø 125 | 1 |
58-125-082 | TWPro MB - Storm Collar - Ø 125 | 1 |
15-125-067 | Roof Support - Ø 125 | 1 |
12-7LT | MI-Flash - No 7 Metal Black EPDM 152-280mm 355x355 | 1 |
32-SK1 | Standard Fixing Kit | 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 |
Package Components Details | 37-125-005, 37-125-011, 37-125-010, `SKU`, 58-125-082, 37-125-112, 58-125-096, `SKU`, 12-7LT, 32-SK1, 15-125-067 (TWPro MB - Flat Adaptor - u00d8 125, TWPro MB - Pipe 500mm - u00d8 125, TWPro MB - Pipe 1000mm - u00d8 125, `Product_Name`, TWPro MB - Storm Collar - u00d8 125, TWPro MB - Rain Cap with Mesh - u00d8 125, TWPro MB - Finishing Plate 0u00b0-30u00b0 - u00d8 125, `Product_Name`, MI-Flash - No 7 Metal Black EPDM 152-280mm 355x355, Standard Fixing Kit, Roof Support - u00d8 125) |
Package Components | 37-125-005, 37-125-011, 37-125-010, `SKU`, 58-125-082, 37-125-112, 58-125-096, `SKU`, 12-7LT, 32-SK1, 15-125-067 |
What our experts say!
"The Large Tinderbox Multifuel Stove is a top performer with its 81.3% efficiency and 5kW output. Perfect for both retail and trade customers, this stove stands out for its ECODesign compliance and suitability for Smoke Control Areas. National Flues delivers nationwide, ensuring you receive your stove swiftly and securely."
The Large Tinderbox Multifuel Stove is designed to provide efficient, eco-friendly heating for medium-sized living spaces. Its multifuel capability allows for versatility in fuel choice.
Tinderbox stoves are renowned for their high efficiency and robustness, combining traditional craftsmanship with modern eco-conscious technology.
