Major appliance

A large, durable household machine designed for a substantial domestic task, such as refrigeration, cooking, washing clothes, or cleaning dishes.

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Refrigerator: An insulated appliance that removes heat from an enclosed space to keep food and other contents cool. It preserves perishable food through continuous cooling.
Heat pump: A device that transfers heat from one place to another using work, commonly through a refrigerant cycle. Refrigerators and some clothes dryers use heat-pump cycles to move heat efficiently.
Gas appliance: A household appliance that uses natural gas or liquefied petroleum gas as an energy source. Gas models contrast with electric versions in fuel use, installation, and emissions.
Energy efficiency: The ratio of useful output to energy consumed by a system. Efficient models can reduce the electricity or fuel required for routine household tasks.
Domestic technology: Tools and systems developed to perform or support activities in the home. Major appliances are large-scale examples of technology designed for domestic work.
Washing machine: An appliance that cleans textiles using water, detergent, and mechanical action. It automates the repeated task of laundering household clothing and linens.
Thermostat: A control device that regulates temperature by switching heating or cooling equipment in response to measured conditions. Temperature feedback keeps refrigerators and ovens near their set points.
Electric appliance: A household appliance powered primarily by electricity. Electric models provide the main alternative to gas-powered cooking and heating appliances.
Energy Star: A voluntary United States program that identifies products meeting specified energy-efficiency criteria. Its labels help distinguish qualifying efficient appliance models.
Electrification: The expansion of electrical power systems and the conversion of activities to electric energy. Household electrification enabled appliances to replace many fuel-powered or manual tasks.