Why Are Cooling Boxes in Refrigerators Often Positioned at the Top?

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queuetea
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in refrigerators, why cooling boxes are kept at top?
 

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They aren't always.
 
but almost all the times. why?
 
No, not almost all the time. Maybe in your country, but not everywhere.

Nobody can explain why something is true if it isn't true.
 
Vanadium 50 said:
They aren't always.

They often use panels at the back but the heat exchanger is never (??) at the bottom - unless there is a fan.