pump apparatus has magnetic heat

A magnetic heat pump apparatus includes: a container (31) defining a working chamber (311); a magnetic working element (30) arranged in the working chamber; an applicator (32) of magnetic field which applies a magnetic field to the magnetic working element and removes the magnetic field of the latter in a direction of the magnetic field; and a conveying device (34) carrying a thermal medium to animate a movement back and forth in a direction of movement back and forth. The magnetic field direction and the direction of movement back and forth have an intersection. The magnetic working element is one of a plurality of magnetic work items. Each of the plurality of magnetic working elements has a column shape extending in the direction of the magnetic field.