PURPOSE: To make a device compact, reduce a thermal influence on a refrigerator of an oven, and improve convenience of a door, by disposing a compressor and an air fan in a temperature insulating space between the refrigerator and the oven both being overlapped one on the other, and holding doors of the refrigerator and the oven horizontally downwardly upon opening.

CONSTITUTION: A heat insulating space is formed between an oven of a combined unit having an upper portion constructed as an oven and a lower portion constructed as a refrigerator and the refrigerator, and a compressor 53 of the refrigerator and an air fan 56 are disposed in the heat insulating space. A door 21 of the refrigerator and a door 22 of the oven are mounted on lower portions thereof through hinges 50, 51, and they are rocked downward upon opening of the door and held horizontally also for use as a working bench. As a result, the structure is made compact, and a thermal influence on the refrigerator of the oven can also be reduced, and further the door is useable as a working bench.