<p>A heating rack comprises a plurality of elongate collector units (26), each elongate collector unit comprising an elongate support section (126) which defines a contact surface for supporting an object (16) to be heated and an elongate collector section (226) shaped to define a channel (35) for receiving exudate flowing via the support sections from a supported object and, in use, to direct said exudate to a collection zone at an end of the channel, wherein said support section and collector section are spaced apart over at least a part of the length of the elongate collector unit.</p>
