In Bridge Street is a hypocaust remaining just where the Romans left it.
It had no cloisters, no hypocaust, no suite or sequence of rooms.
If there are no baths there is at all events an excellent specimen of a hypocaust, or Roman heating arrangement, to be seen.
However, after the wood in the hypocaust was once well charred, the smoke was not so troublesome.
Doubtless we got our idea of the furnace from the Roman hypocaust, although the Roman invention had no special pipe for the smoke.
Indeed, the hypocaust had many of the features and many of the merits of our modern furnace.
In addition to the hypocaust under the floor the wall was lined with flue tiles.
Pliny describes a bedchamber in his villa warmed by the hypocaust and the tiles, with narrow openings.