WOOD FUEL FOR HEATING

摘要

Wood is a very ver-satile fuel and comes in many forms, the main ones being logs, chips and pellets or bri-quettes. Logs are used on open fires, stoves and manually fed central heating boilers. Woodchips are generally used in larger boilers (anything between about 30 kW to 50 kW upwards) and not on a domestic scale. Wood pellets or briquettes are manufactured from waste wood products such as sawdust and come in many sizes - briquettes can be used to replace logs whereas wood pellets are used in spe-cially designed stoves and small-er scale domestic boilers.