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:
- 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.
- 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.
- 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.
- 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.
- 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.