The caldarium is well preserved; only a part of the vaulted 206 ceiling has been destroyed.
A doorway led from the tepidarium into the caldarium, or vapor-bath.
This alveus would accommodate eight bathers, that in the men's caldarium perhaps ten.
The cold bath, in distinction from the caldarium, the hot bath.
These differ, because the caldarium is only melted, and is brittle to the hammer; whereas the regulare is malleable or ductile.
Coming from these two sources the caldarium must have been, indeed, impure.
The caldarium, like those of the public baths, had a bath basin and a semicircular niche for the labrum.
See Note 16, p. 511, for discussion of yellow and caldarium copper.
There was a place for another draft fire under the women's caldarium.
Then he throws it into the tub containing hot water, for the caldarium copper is finer if quenched in hot water.