The heating plate (1) has cavities (2), in which electrically heatable
heating bodies (3) are disposed. A heat exchange medium circulated by a
pump (4) transmits the heat emitted by the heating bodies (3). The
heating plate is designed to obtain a uniform temperature distribution
using as low a volume of heat exchange medium as possible. To this end,
the cavities (2) are elongate and the heating bodies (3) are bar-shaped.