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Large Tinderbox on Log Box, 5kW, ECODesign with internal full height kit (137-LLG-TBOX-inside)

Discover the superior Large Tinderbox on Log Box stove – a high-efficient, EcoDesign certified wood-burning marvel. With its internal full height kit for a seamless integrated installation and our free design service, this package enhances warmth, style, and sustainability in your home.
🛠 What You Get: Premium Stove and Complete Internal Two Storey Kit

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.

The price you pay today £1,975.99
including free delivery Give us a call if you find it cheaper and we'll try to price match.

 

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At a Glance

    High-efficient wood-burning stove for ultimate warmth and fuel economy
    EcoDesign certified for environmentally friendly heating solutions
    Complete internal full height installation kit for integrated setups
    Streamlined design perfect for modern, freestanding applications
    Bonuses include our free professional design service for tailored installations
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]

Large Tinderbox on Log Box, 5kW, ECODesign with internal full height kit... Discover the superior Large Tinderbox on Log Box stove – a high-efficient, EcoDesign certified wood-burning marvel. With its internal full height kit for a seamless integrated installation and our free design service, this package enhances warmth, style, and sustainability in your home.

Features & Benefits

High-Efficiency Heating

Provides consistent warmth while consuming less fuel, cutting running costs.

EcoDesign Certification

Ensures lower CO emissions and higher energy efficiency, aligned with modern eco-standards.

Internal Full Height Kit

Enables a seamless, integrated installation that enhances the overall aesthetic of your space.

Robust Build Quality

Delivers longevity and reliable performance, even with frequent use.

Free Design Service

Access expert guidance to plan the perfect installation for your home, no matter the layout.

SKU: 137-LLG-TBOX-inside

Need a complete stove & installation kit?

Stove on its Own
Stove on its Own £1,049.99
View Package
Single Storey
Single Storey £1,265.99
View Package
Up & Out Kit
Up & Out Kit £2,075.99
View Package
Chimney Kit
Chimney Kit £1,075.99
View Package
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 Output5kW
Heat Output Range4-7.5kW
Energy Efficiency RatingA+
Wood Burning Efficiency81%
CO Emissions0.09% @ 13% O2
Maximum Log Length480mm
Flue Outlet5' Top or Rear
Dimensions550mm (H) x 579mm (W) x 383mm (D)
Weight86kg
Eco Design ApprovedYes
Smoke Control ExemptYes
Cleanburn SystemYes
Airwash SystemYes
Direct Air KitOptional
Grate OptionOptional
This comprehensive internal full height kit is designed to integrate seamlessly with your Large Tinderbox on Log Box stove installation. Ideal for both single and multi-storey living spaces, whether positioned indoors or in a sheltered exterior, the installation kit has been curated for a neat and efficient setup. Although we do not provide the installation service ourselves, our free design service is available to guide you through every step. Please refer to the main image to view the integrated design concept clearly.

The stove has an impressive efficiency rating of 80.4%, making it one of the most efficient stoves of its size in the UK.

Yes, this stove is exempt from Smoke Control Area regulations, making it ideal for use in both urban and rural settings.

This stove boasts an A+ Energy Rating, ensuring it is environmentally friendly and economical to run.

The stove is proudly designed and assembled in the UK, guaranteeing top-notch quality and craftsmanship.

The Large Tinderbox on Log Box has very low emissions with only 14% Dust Particles, making it an eco-friendly choice.

Yes, the log box provides a handy space to store your logs, keeping your fireside area tidy and organized.

The stove has a heat output of 5kW, providing ample warmth to any living area.

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