Abstract: A suspension cradle for supporting a hanging heat exchanger having vertical tubes, the heat exchanger including at least one heat-exchanger element having a plurality of tubes grouped together in the same plane and connected to a manifold at each of their ends, the cradle including two main beams situated parallel to and on either side of the manifold, and at least one transverse support fastened transversely to the main beams, the transverse support supporting the heat-exchanger element, wherein the transverse support is in the shape of an upside down triangular rafter truss, and wherein the heat-exchanger element bears down against the bottom portion of the truss at a joint portion where the two branches meet to form the tip of the truss.