Thermae would be heated by a log fire before being channelled into the hot bathing rooms. The design of baths is discussed by Vitruvius in "De Architectura". "Thermae, balneae, balineae, balneum" and "balineum" may all be translated as "bath" or "baths", though Latin sources distinguish among these terms. "Balneum" or "balineum", derived from the Greek signifies, in its primary sense, a bath or bathing-vessel, such as most persons of any consequence among the Romans possessed in their own houses, and hence the chamber which contained the bath, which is also the proper translation of the word "balnearium". The diminutive "balneolum" is
Ancient Roman pottery coarse and fine wares were produced locally, yet many other classes of pottery were also imported from elsewhere in the Empire. The manufacture of fine wares such as " took place in large workshop complexes that were organised along industrial lines and produced highly standardised products that lend themselves well to precise and systematic classification. There is no direct Roman equivalent to the artistically central vase-painting of ancient Greece, and few objects of outstanding artistic interest have survived, but there is a great deal of fine tableware, and very many small figures, often incorporated into oil lamps or similar objects,