MediumTinderbox on Log Box, 5kW, ECODesign with masonry1 chimney kit (137-MLG-TBOX-chimney)
Ready for installation. This kit is made for use with an existing chimney. Includes everything needed to connect and safely line your flue system. 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 and eco-friendly wood burning design for sustainable heating
Specifically engineered for Class 1 masonry chimneys
Includes a free design service to plan the perfect installation
Contemporary aesthetic with a robust build quality
Special offer: 10m flex pack bundle (SO-T1) included
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
MediumTinderbox on Log Box :: with masonry1 chimney kit installation kit :: with masonry1 chimney... Introducing the MediumTinderbox on Log Box – a cutting-edge wood burning stove that embodies eco-design excellence and superior performance. With its masonry1 chimney kit and high-efficiency rating, this stove offers a perfect blend of style and functionality, making it an ideal choice for sustainable home heating.
Enjoy the benefits of reduced emissions, a robust construction and our special installation kit bundle, complete with a free design service for the ultimate customer experience.
Features & Benefits
EcoDesign Certification
Guarantees high energy efficiency and reduced CO emissions while meeting strict environmental standards.
Masonry1 Chimney Kit
Specifically tailored for Class 1 masonry chimneys, ensuring safe and effective venting of combustion gasses.
Free Design Service
Receive expert guidance for optimising installation, whether indoors, outdoors, single or multi-storey properties.
10m Flex Pack Bundle (SO-T1)
Enhances installation ease and adds exceptional value through our special offer bundle.
SKU: 137-MLG-TBOX-chimney
SKU | Product Name | Qty |
---|---|---|
35Z-15-10 | 10 Meter Lifetime Guarantee Flexible Flue | 1 |
25-125-MAE | Screw-FIX Adaptor to SW - Ø 125 | 1 |
25-125-PHCMT2 | MI-FLEX Pot Hanging Cowl (Terracotta) - Ø 125 | 1 |
94-REG-F | Register Plate (F) - 900x495, no access hole - Ø 125 & 150 | 1 |
20-CNP | Chimney Notice Plate | 1 |
13-CO-7B | CO Alarm - Firehawk CO7B | 1 |
67-125-011 | VIT-Smooth - 500mm Pipe - Ø 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 |