- A caldarium was a room with a hot plunge bath, used in a Roman bath complex.|This was a very hot and steamy room heated by a hypocaust, an underfloor heating system. This was the hottest room in the r -

7GR-H1-0087-006479 (2008990) E: n bath complex.|This was a very hot and steamy room heated by a hypocaust, an underfloor heating system. This was the hottest room in the r A caldarium was a room with a hot plunge bath, used in a Rom an bath complex.|This was a very hot and steamy room heated by a hypocaust, an underfloor heating system. This was the h ottest room in the regular sequence of bathing rooms; after the caldarium, bathers would progress back through the tepid arium to the frigidarium.|IN THE PHOTO: DETAIL VIEW HERE WE SEE THE USE OF MATIERIAL FROM ANCIENT GREEK GRAVE A PHALIRI STELE|akg-images/johnhios ORIGINAL: A caldarium was a room with a hot plunge bath, used in a Roman bath complex.|This was a very hot and steamy room heated by a hypocaust, an underfloor heating system. This was the hottest room in the regular sequence of bathing rooms; after the caldarium, bathers would progress back through the tepidarium to the frigidarium.|IN THE PHOTO: DETAIL VIEW HERE WE SEE THE USE OF MATIERIAL FROM ANCIENT GREEK GRAVE A PHALIRI STELE|akg-images/johnhios