A major appliance, or omestic appliance, is usually defined as a large machine which accomplishes some routine housekeeping task, which includes purposes such as cooking, food preservation, or cleaning, whether in a household, institutional, commercial or industrial setting. An appliance is differentiated from a plumbing fixture because it uses an energy input for its operation other than water, generally using electricity or natural gas/propane. An object run by a watermill would also be considered an appliance. The term white goods is also used for these items, primarily where British English is spoken, although definitions for the term "white goods" can differ. In the United States, the term white goods more commonly refers to linens rather than appliances.