Description
RUF Long Burn Briquettes
RUF Long Burn briquettes are a dense, slow-burning wood fuel made in the UK from compressed softwood bark. They’re designed for customers who want a steady, longer-lasting burn rather than lots of quick heat.
Their dense construction and high bark content mean they burn more slowly than many standard wood briquettes. Once established, they produce a consistent heat and can be turned down in a suitable stove for an extended burn.
At a Glance
Heat: Moderate
Burn: Very long
Flame: Moderate
Lighting: Best added to an established fire or hot ember bed
RUF Long Burn can be used safely on an open fire and are a good choice when you want a steady, lower heat output rather than a fierce fire.
They really come into their own in a stove, where controlling the airflow allows you to slow the burn right down and get the best from their long-burning characteristics.
For the longest burn, we recommend adding them to a well-established fire or hot ember bed. If you’re using them on an open fire, they’ll still give a steady, long-lasting burn, but you won’t have the same control over the burn rate that you get with a stove.
How We Use RUF Long Burn
These are a slightly unusual briquette, so it’s worth explaining how we use them ourselves.
In my 5kW stove, I use RUF Long Burn at the end of the evening. Once the main fire has died down and there’s a good bed of hot embers, I place one or two briquettes directly onto the ember bed and close the airflow down fully.
With two RUF Long Burn added at around 10pm, I regularly find the fire is still in at 6am the following morning. By then, the briquettes have burned down to solid, glowing hearts roughly the size of a block of butter. They’re not producing fierce heat, but they help keep the chill off the room and, importantly, leave a good hot base for restarting the fire.
In the morning, I simply open the airflow again and add fresh fuel over the glowing blocks.
Every stove and chimney behaves differently, so overnight performance can’t be guaranteed. Some stoves are also designed so that the airflow can never be completely closed. If yours is one of these, you should expect a faster burn and therefore a shorter overall burn time.
However, from our experience, if you’re looking for a wood briquette with the best chance of keeping a stove gently slumbering overnight, RUF Long Burn is the one we’d choose.
Burning Characteristics
RUF Long Burn works best once you already have a well-established fire and a good ember bed. It produces a slow, glowing burn rather than lots of flame when the airflow is reduced.
For a longer burn, allow the briquettes to catch before gradually reducing the airflow to the appropriate setting for your stove.
Best For
- Longer, slower burns
- Adding at the end of the evening
- Maintaining gentle heat overnight
- Leaving a hot ember base for the following morning
- Wood-burning and multi-fuel stoves suitable for this type of fuel
- Mixing with other briquettes when you want to extend the burn
Technical Details
- Composition: Softwood bark from UK conifer trees
- Calorific value: 4.5 kWh/kg
- Maximum moisture content: Less than 8%
- Maximum ash content: 4%
- Product standard: FSC
- Briquette size: Approximately 150mm × 90–100mm × 62mm
- Weight per briquette: Approximately 940g
- Pack size: 10 briquettes, approximately 9.4kg
- Country of origin: England
- Suitable for: Wood-burning stoves, multi-fuel stoves and open fires
How should I store them?
Keep the packs completely dry in a garage, watertight shed or other dry space. The pack wrapping may have small gaps, and the wrapping around a delivered pallet only gives temporary protection from the weather. Neither is suitable for outdoor storage.
Delivery and access
Delivery to most UK mainland postcodes is included in the pallet prices shown. Some mainland and offshore addresses have an additional charge, which you can check using the postcode checker on our pallet delivery information page. Express Packs are sent by parcel courier; see our parcel delivery information.
Pallets are delivered by Palletways, normally to the kerbside using a tail-lift and pallet truck. The driver needs firm, flat ground and cannot move the pallet over gravel, grass, steps or slopes.
If you need a smaller 7.5-tonne vehicle, your order must weigh no more than 720kg. A full pallet weighs 960kg and needs access for an 18-tonne vehicle. Select Access Restrictions at checkout and add a note if you need a 7.5-tonne vehicle. If you’re unsure about access, call us on 01387 731 210 before ordering.

