English edit

 
Hypocaust from the Roman Baths at Bath, England. The floor has been removed to reveal the pillars of the hypocaust.
 
Underfloor heating pipes, before they are covered by the screed.

Etymology edit

From Latin hypocaustum, from Ancient Greek ὑπό (hupó, underneath) + καίειν (kaíein, to light a fire, burn).

Noun edit

hypocaust (plural hypocausts)

  1. An underfloor space or flue through which heat from a furnace passes to heat the floor of a room or a bath.
  2. An underfloor heating system, even without such an underfloor space or flue, as adapted for modern housing.

Synonyms edit

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See also edit