Choose pellets if you run an automatic-feed boiler or gasifier and want a consistent, low-moisture fuel. Choose briquettes if you fire a large furnace or kiln manually and want a lower-cost fuel in bulk. Both deliver similar energy per kilogram.
Same idea, two formats
Densification turns loose, bulky biomass into a dense, dry, easy-to-handle fuel. Both pellets and briquettes use the plant's own lignin as a binder, so neither needs added glue.
The split is mechanical. Pellets are forced through a small ring-die at very high pressure, producing uniform cylinders 6–12 mm across. Briquettes are pressed by a screw or piston into much larger blocks, typically 60–90 mm across. That single difference drives everything else.
Side by side
How the two densified fuels compare on the factors that decide cost and convenience.
| Factor | Pellets | Briquettes |
|---|---|---|
| Size | 6–12 mm dia | 60–90 mm dia |
| Bulk density | 600–700 kg/m³ | 550–650 kg/m³ |
| Moisture | < 10% | < 12% |
| FeedingRecommended | Fully automatic | Manual / semi-auto |
| Calorific value | 3,800–4,800 kcal/kg | 3,500–4,500 kcal/kg |
| Best for | Boilers, gasifiers | Kilns, large furnaces |
When pellets win
Automatic feeding
Their small, uniform size flows through augers and screw feeders, so boilers can run hands-off.
Consistent burn
Tight size and low moisture give a steady, predictable flame — ideal for process heat that can't fluctuate.
Denser handling
Free-flowing and slightly denser, so they store and transport efficiently in silos and bulk bags.
When briquettes win
Lower fuel cost
Simpler to produce, so the per-tonne price is often lower where automation isn't needed.
Long, steady heat
Their larger mass burns slowly and steadily — well suited to brick kilns and big furnaces.
Manual-friendly
Easy to load by hand in plants without feeding systems or where labour is readily available.
If your system feeds fuel by machine, buy pellets. If you load fuel by hand into a large furnace or kiln, briquettes usually cost less for the same heat.