The eastern range of the bath house contained a large tepid bath
fed by water that flowed through a pipe from the Great Bath. A
series of heated rooms was developed here which became
progressively larger until the site reached its maximum extent in
the fourth century AD.
As part of the presentation of the site today, decorated walls
have been suspended over the line of surviving wall foundations
from the fourth century AD. This gives visitors an impression of
the enormous size of some of the rooms in this bath house.