| 31. | In the late 13th or early 14th century a medieval undercroft was built adjacent to the hypocaust, with a house above.
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| 32. | At the southern corner tower a hypocaust system of an older villa rustica from the 1st to the 3rd century was excavated.
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| 33. | Room no . 29 featured a hypocaust heating system, which probably had a caldarium, or hot plunge bath above it.
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| 34. | One of the most remarkable is the hypocaust, or greenhouse heating system, that was discovered in the basement of the building.
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| 35. | Orata was also credited by Vitruvius with the invention of the hypocaust ( underfloor heating ), although this is not fully confirmed.
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| 36. | The foundations of a Roman building with hypocaust were discovered in 1834 and are believed to be a villa and bath house complex.
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| 37. | The park is named after the Tessa, during which the 1800-year-old hypocaust and its covering mosaic floor were discovered.
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| 38. | The Hypocaust Mosaic is on view to the public and currently protected from the elements by a purpose-built building in the park.
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| 39. | The structure's ground-plan and the presence of the hypocaust, leaves little doubt that this was a bath-house.
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| 40. | Near the river crossing is the site of a Roman villa, the hypocaust of which was found about the middle of the seventeenth century.
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