<p>A refrigerator has a rotatable damper (51) mounted in a duct leading to a cooling chamber (3). The damper (51) is positioned by a motor (53) which rotates it under the control of a controller (80). The controller (80) controls the motor (53) to open the damper (51) is more cool air is required in the cooling chamber (3) and to close the damper (51) if the cooling chamber (3) is sufficiently cool. <IMAGE></p>
