This underfloor heating system was present in the tepidarium, the caldarium and the laconicum where the floors were supported on pillars of tiles or pilae.
12.
Three outdoor spaces : a caldarium, a tepidarium, and a frigidarium, offered three climatic zones based on the divisions of a traditional Roman bath.
13.
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.
14.
The structure includes several baths from a hot bath ( caldarium ), and a warm bath ( tepidarium ), to a cold bath ( frigidarium ).
15.
The caldarium, or " Cella caldaria ", was rectangular in shape with many octagonal rooms found near it in the corner of the structure.
16.
The tepidarium would have led into the hot room, the caldarium, which included two hot baths, one which still contains the remains of a seat.
17.
The frigidarium seems to have its longer axis north and south instead of east and west, and behind it were tepidarium and caldarium both circular in shape.
18.
The " caldarium " or hot bath's hemispheric dome has a representation of the heavens in which the zodiac is depicted, among 35 separate identifiable constellations.
19.
Water from the boiler fed the marble-tiled pools in the hot room ( caldarium ), and a large stone basin ( labrum ) contained cool water for the bathers use.
20.
There is no remaining trace of the villa walls in the courtyard of the abbot's house, but the interior of the caldarium and frigidarium of the villa post-Roman inhabitants.
