A refrigerator does not give off heat; rather, it removes heat from its interior to maintain a cool temperature. The primary purpose of a refrigerator is to absorb heat from the items stored inside and expel that heat to the external environment. This process is achieved through a refrigeration cycle involving a compressor, condenser coils, and evaporator coils.
The compressor in the refrigerator pressurizes and circulates refrigerant gas, which then travels through the condenser coils on the back or bottom of the fridge. In the condenser coils, the refrigerant releases the absorbed heat to the surrounding air, causing the coils to feel warm to the touch.
So, while it may seem like a refrigerator is giving off heat through the condenser coils, it is actually transferring heat from the inside of the fridge to the outside environment. This heat transfer process is what keeps the interior of the refrigerator cool and helps preserve the freshness of food items.