right|thumb|230px|Caldarium from the Roman baths at [[Bath, Somerset|Bath, England. The floor has been removed to reveal the empty space where the hot air flowed through to heat the floor.]]

A (also called a calidarium, cella caldaria or cella coctilium) was a room with a hot plunge bath, used in a Roman bath complex.

The boiler supplying hot water to a baths complex was also called .

The temperature of the is not known exactly. However, a floor surface temperature above would have been uncomfortable to stand on with bare feet.

See also

  • Ancient Roman bathing

References

  • Greek and Roman baths at the Perseus Project