Wood pellets are made from wood shavings and sawdust and are used in highly efficient and convenient automatic wood boilers. Because they have a low moisture and ash content wood pellets burn very efficiently. What's more they are compact and easy to store. Typically pellets come in bags (ideal for stoves or smaller boiler systems) or are delivered in bulk by truck (ideal for boiler systems with bulk stores). Wood pellets can be ordered from local fuel merchants.
Pellets facts (Typical)
Dry matter content 90-92%
Ash content 0.5%
Density 650 kg/m3,
Volume 1.54m3/tonne pellet,
Energy 4.7 kWh/kg pellet
Benefit 1kg wood pellet replaces 0.41kg of light fuel oil
Wood pellets are upgraded or refined wood fuels which have been produced from sawdust, grinding dust, shavings, bark or cutter chips by drying and pressing. No additives are needed to produce them. Lignin released in the pressing process binds the wood material. They are compact and easy to store and use for fully automatic burning in wood pellet boilers or stoves.
Good quality wood pellets with a moisture content of 8% will have a calorific value of approximately 4,700 kWh/tonne.