Heat transfer device

The utility model provides a heat transfer device capable of flexibly coping with various pipeline layouts. A heat transfer device (1) is provided with: a heat transfer medium circulation body (2); aninlet member (3) that is provided to the circulation body (2) and supplies a heat transfer medium to the circulation body (2); and an outlet member (4) that is provided to the circulation body (2) and discharges the heat transfer medium from the circulation body (2). The heat transfer medium circulation body (2) is provided with a first flow path (5) and a second flow path (10) which are approximately U-shaped. The first flow path (5) has: a first linear section (7) having an inflow section (7a) at one end; a second linear section (8) having an outflow section (8a) at the same end as the inflow section (7a); and a bent section (9) that connects the other ends of the two linear sections (7, 8) to each other. The second flow path (10) has a first linear section (11) having an inflow section(11a) at one end, a secon