Refrigerator

A refrigerator includes a housing defining an interior, a freezer disposed within the interior, and a cooling unit for cooling the interior of the refrigerator. The freezer has a freezer door. The cooling unit includes a heat exchanger disposed within the interior of the housing. At least one ventilation duct vertically extends through the freezer door. The at least one ventilation duct has a first end in communication with an upper zone of the interior of the refrigerator. An airflow path extends between the heat exchanger and a lower end of the at least one ventilation duct. A cooling fan is disposed within the interior of the refrigerator for directing a source of air across the heat exchanger, along the airflow path, through the at least one ventilation duct and into the upper zone of the interior of the refrigerator. The cooling unit includes a cooling unit housing located at a rear side of the refrigerator. The cooling unit housing defines a U-shaped airflow path extending between an inlet and an outlet, the inlet and the outlet located at a common lateral side of the refrigerator.