A hypocaust (Latin hypocaustum, Greek hypocauston) was an ancient Roman system of underfloor heating, used to heat houses with hot air. The word derives from the Ancient Greek hypo meaning "under" and caust-, meaning "burnt" (as in caustic). The Roman architect Vitruvius, writing about the end of the 1st century B.C., attributes their invention to Sergius Orata, but this is not fully confirmed #3D_Challenge_149 #air #ancient #fire #flames #floor #furnace #greek #heating #henk #henkietenk #hot #hypocaust #invention #museum #pillars #recontruction #roman #ruins #site #smoke
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