Why do refigerators heat up so much on the outside?

Question

I understand all the cooling liquid and whatnot but what makes the fridge hear up from the outside? Also for freezers.

In: 0

Answer 1

Heat is energy, and temperature is the effect that that energy has on stuff.

As long as the inside of the fridge is above absolute zero you can keep extracting heat (normal engineering practicalities considered), which will make the outside hotter.

TL;DR you can heat your kitchen from your freezer.