RUF briquettes

Looking for heat logs that stack like bricks and burn longer than firewood? RUF briquettes are dense rectangular hardwood briquettes — easy to load, easy to store, and produce more heat per kilo than ordinary logs. Below 10% moisture, Ready to Burn certified, delivered across the UK.

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£459.00 £437.14 Regular Price £479.00 £456.19
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Customer reviews about RUF briquettes

The delivery went smoothly
Review by michoberhotmail.de 10/02/2026
Delivered a little late, but in full
No
Review by De Maeyer 26/01/2026
Good product
sand
Review by Jean-Pierre 10/01/2026
Unfortunately, there’s a lot of sand in the logs from my new order, which means I’m finding lumps of glass in my stove. It must have been the last batch that was lying on the ground. Otherwise, I’m quite happy with them; they burn really well and give off a lot of heat.

RUF briquettes — the heat log that stacks like a brick

If Pini Kay is the heat log shape designed for maximum airflow, RUF briquettes are the shape designed for everyday use. Dense, rectangular and uniform — they stack like bricks in your stove, your wood store and your delivery pallet. No rolling, no gaps, no wasted space. Just consistent, predictable heat with very little fuss.

Every pack of RUF briquettes UK wide on this page is made from pure compressed hardwood sawdust, with moisture below 10%, Ready to Burn certified, and produced under high pressure without glue, binders or chemical additives. Just sawdust, pressure and heat.

Why the brick shape works

RUF briquettes are simple in concept, but the rectangular shape brings real practical advantages:

  • They stack flat. Whether you're loading a stove, filling a log store, or stacking a pallet, RUF briquettes pack tightly with no wasted space. A pallet of RUF briquettes holds more fuel by volume than the equivalent in irregular logs.
  • They don't roll. Round briquettes can move around in the stove as they burn. The flat sides of RUF briquettes keep them exactly where you put them.
  • They burn evenly. The uniform shape means a predictable burn — no surprise hot spots or cold patches, no half-burnt remnants when the fire dies down.
  • They're easy to handle. Drop a couple onto an ember bed and they sit flat instead of rolling around. Good when you're loading a stove without prodding logs into position.
  • Minimal expansion. Unlike cheap compressed logs, RUF briquettes hold their shape during burning. No swelling, no crumbling, no mess in the ash pan.

How long do RUF briquettes actually burn?

Suppliers claim anywhere from 1.5 to 3 hours per briquette, which is a wide range. In practice, here's what you can actually expect:

  • Open fire — around 1–1.5 hours per briquette (high airflow burns through them quickly)
  • Standard wood burner — 1.5–2 hours per briquette
  • Modern Ecodesign stove — 2–2.5 hours per briquette
  • Damped-down stove — 2.5–3 hours per briquette, sometimes longer

For an evening fire, 3–4 RUF briquettes plus a base of kindling and kiln dried logs typically gets you 4–5 hours of heat. For overnight burns, you'll want to either load more RUF briquettes or pair them with denser fuel like Pini Kay or oak logs.

What's in our RUF briquettes

RUF quality varies hugely depending on the sawdust used. Cheap RUF briquettes can be made from anything — softwood scraps, recycled wood waste, even painted offcuts. That's not what you get here.

  • 100% hardwood sawdust — typically a blend of oak, beech and birch. No softwood scraps, no recycled wood, no painted offcuts.
  • No glue, no binders, no chemicals. Hydraulic compression at high pressure binds the wood fibres using the natural lignin in the sawdust.
  • Below 10% moisture — significantly drier than even kiln dried logs (which are below 20%).
  • High calorific value — around 4.8 kWh per kilogram, higher than most natural firewood.
  • Less than 1% ash residue. Much cleaner burn than ordinary firewood, less ash pan emptying.
  • Ready to Burn certified. Independently tested by Woodsure, legal to burn anywhere in the UK including Smoke Control Areas.
  • Sustainable sourcing. Sawdust is a byproduct of hardwood sawmilling — we're using waste that would otherwise be discarded.

How to burn RUF briquettes properly

RUF briquettes are forgiving and easy to use, but a few habits make a real difference:

  1. Start with a normal fire. Light kindling and a few kiln dried logs as you would normally. Get a strong ember base before adding briquettes.
  2. Add 3–4 RUF briquettes once the fire is going. Stack them flat on the embers. Don't add them to a cold fire — they'll smoulder rather than burn properly.
  3. Don't overload. RUF briquettes pack a lot of energy into a small space. 5–6 in a small stove can over-fire the appliance. Keep it to 3–4 at a time.
  4. Damp down for the long burn. Once the briquettes are burning well, close your air vents partway. RUF briquettes burn longer with reduced airflow — great for evenings when you want sustained heat without constant feeding.
  5. Keep the stove door closed. Like all heat logs, RUF briquettes need controlled airflow to burn properly. Open doors lead to fast, wasteful burns.

Are RUF briquettes good value?

For everyday burning, RUF briquettes are arguably the best value heat log on the UK market. Here's why:

  • Cheaper than Pini Kay — typically 15–25% lower price per kilo for similar overall heat output
  • More efficient than firewood — higher calorific value per kilogram, less ash, less storage space
  • Reliable performance — uniform shape, consistent moisture, predictable burn
  • Easy to bulk-buy — pallets stack tightly, so a full pallet of RUF briquettes takes up less space than the equivalent in logs

If you light fires regularly through winter, a half or full pallet of RUF briquettes pays for itself quickly against weekly small purchases. Most heavy users keep RUF as their main fuel and reserve premium briquettes (or specific species like oak) for special occasions.

Buy RUF briquettes in the UK

We sell RUF briquettes UK wide, delivered straight to your door. No driving to a stockist, no relying on whatever your local hardware store has in stock (RUF isn't always carried at smaller suppliers).

Order before 14:00 on a working day and your RUF briquettes leave us the same day. Small box orders ship by courier (usually next working day for most UK postcodes). Pallets are delivered kerbside by pallet network couriers within 1–3 working days. Free UK delivery on orders over £ 25.

FAQ

What are RUF briquettes?

RUF briquettes are rectangular hardwood heat logs made from compressed sawdust. They're named after the German machine company (RUF) that pioneered the press technology in the 1960s. Made under high pressure without glue or chemical binders, they're denser than natural firewood, contain below 10% moisture, and burn longer per kilogram than ordinary logs. The brick shape makes them easy to stack and load.

How long do RUF briquettes burn for?

Between 1.5 and 3 hours per briquette, depending on your stove and how damped down it is. In a modern Ecodesign wood burner with air vents closed partway, 2–2.5 hours is typical. In an open fire with high airflow, you'll get closer to 1–1.5 hours per briquette. For longer burns, use RUF briquettes alongside Pini Kay briquettes — RUF gets the fire going steadily, Pini Kay extends the burn time.

Are RUF briquettes better than ordinary firewood?

For pure efficiency, yes. RUF briquettes have a higher calorific value than most natural firewood (around 4.8 kWh/kg vs ~3.5 kWh/kg for kiln dried oak), produce less ash (under 1%), and stack more easily than logs. They're also cleaner to handle — no bark, no debris, no insects. Many of our customers use RUF briquettes alongside traditional firewood: kiln dried logs for atmosphere, RUF briquettes for sustained heat.

Can I use RUF briquettes in any stove?

Yes — RUF briquettes work in any wood-burning appliance: modern Ecodesign stoves, traditional wood burners, multi-fuel stoves, open fires, chimineas and fire pits. They perform best in closed stoves where you can control the air supply, but they work fine on open fires too (just expect a slightly shorter burn time due to higher airflow). Don't use them in pellet stoves or biomass boilers — those need specific pellet fuel.

Are RUF briquettes eco-friendly?

Yes. RUF briquettes are made from waste sawdust — typically a byproduct of hardwood sawmills that would otherwise be discarded. The manufacturing process uses high pressure (no glue or chemicals), and the sawdust often comes from FSC-certified forests. They produce less ash than firewood, leave less creosote in your chimney, and burn more efficiently per kilogram. From a sustainability perspective, they're one of the cleaner options for wood-fired heating.

Do RUF briquettes produce a lot of ash?

No — RUF briquettes produce less ash than ordinary firewood, typically under 1% by weight. That's significantly less than kiln dried logs (around 2–3% ash) and much less than seasoned wood (3–5% ash). The lower ash content means less frequent ash pan emptying and less cleanup. If you're seeing a lot of ash from your RUF briquettes, you might have a low-quality product made from recycled or mixed wood — our briquettes use only hardwood sawdust.

Do RUF briquettes need to be Ready to Burn certified?

Yes. Under UK law, any wood fuel sold in volumes under 2m³ must be Ready to Burn certified. That includes RUF briquettes. All our RUF logs carry the Ready to Burn mark, so you can use them legally anywhere in the UK including Smoke Control Areas.

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