Refrigerator

A refrigerator (often shortened to fridge) or freezer is an electrical appliance that uses refrigeration to help preserve food. A domestic refrigerator is present in 99.5% of American homes. It works using phase change heat pumps operating in a refrigeration cycle. An industrial refrigerator or industrial freezer is simply a refrigerator used in an industrial setting, usually in a restaurant or supermarket.

External links

• History of the Refrigerator - Gizmohighway Technology Guide
• How Refrigerators Work Article by RepairClinic
• Question & Answer Forums Forums by Applianceblog.com
• How Refrigerators Work Article by HowStuffWorks
• The History of the Refrigerator and Freezers
• The History of Sub-Zero Article by Sub-Zero on the History of the Refrigerator
• How does a gas-powered fridge actually work (without compressor - using heater to power the heat transfer cycle)