Editing Refrigerator (section)

===Absorption refrigerators===
An [[absorption refrigerator]] works differently from a compressor refrigerator, using a source of [[heat]], such as [[combustion]] of [[liquefied petroleum gas]], [[solar thermal energy]] or an electric heating element. These heat sources are much quieter than the compressor motor in a typical refrigerator. A fan or pump might be the only mechanical moving parts; reliance on convection is considered impractical.

Other uses of an absorption refrigerator (or "chiller") include large systems used in office buildings or complexes such as hospitals and universities. These large systems are used to chill a brine solution that is circulated through the building.