There are numerous synonyms for the term "wood fuel". Some of them include firewood, timber fuel, wood chips, wood pellets, and wood logs. Firewood typically refers to logs of wood used for cooking or heating purposes in fireplaces, stoves, or similar installations. Timber fuel is usually wood that is unsuitable for use in construction or furniture-making and is therefore burned to produce energy. Wood chips and pellets are small pieces of wood that are used in biomass boilers and stoves to generate heat or electricity. Lastly, wood logs refer to larger pieces of wood used for fuel in industrial settings or large scale heating systems.