• furnace ⪢⪢
http://qindex.info/i.php?x=13182

• furnace ⪢⪢
It's a two-foot gap beneath the floor supported by pillars into which warm air would rush from a furnace in the corner of the room.
http://qindex.info/i.php?x=11837

• furnace ⪢⪢
http://qindex.info/i.php?x=18628

○○○ light ⪢⪢
So long as the furnace remained lit a Roman home could kept warm even in the coldest months of the winter.
http://qindex.info/i.php?x=11841

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