Wood pellets are a type of wood fuel made from compacted sawdust. Pellets are extremely dense and can be produced with a low humidity content (below 10%) that allows them to be burned with a very high combustion efficiency, their high density also permits compact storage and rational transport over long distance. Further, their regular geometry and small size allow automatic feeding with very fine calibration. They can be fed to a burner by auger feeding or by pneumatic conveying.

Pellet heating systems provide a low-net-CO2 solution, because the quantity of CO2 emitted during combustion is equal to the CO2 absorbed by the tree during its growth. With the high efficiency burners developed in recent years, other emissions such as NOx and volatile organic compounds are very low, making this one of the most non-polluting heating options available.

Known facts:

- The energy content of wood pellets is approximately 4.8 kWh /ton (or about 17 million BTU/ton).
- Every 2.2 tonnes of pellets used prevents 1,000 liters of oil being burnt, saving approximately 2 tonnes of CO2.
- Wood pellets are clean and CO2-neutral.