Domestic refrigerators are engineered to expel heat into the ambient air.
They employ an air cooled condenser, which dissipates the heat captured from within the refrigerator into the room's air.
This condenser type is characterized by its compact size, straightforward installation, and independence from water supply or additional upkeep.
Water cooled condensers are typically found in industrial or large-scale systems where abundant water is accessible.
Evaporative condensers integrate both water and air cooling mechanisms but are not implemented in smaller refrigerators.
Double tube condensers are more frequently encountered in water cooled configurations.
Consequently, domestic refrigerators conventionally utilize air cooled condensers.