<p>The heat exchanger according to an embodiment of the present invention is equipped with: a container into which a heat transport medium is introduced; and a heat exchange element, which is provided within the aforementioned container, and has a base part that includes a magnetocaloric effect material extending in the direction of flow of the heat transport medium and multiple heat-conducting parts provided on the surface of the aforementioned base part. In addition, the thermal conductivity of the aforementioned heat-conducting parts is higher than the thermal conductivity of the aforementioned base part.</p>
