It is the combination hot air rising and subsequent vacuum effect in the room below which ensures that smoke from a fireplace fire will go up a chimney. without the control of the chimney flue, this effect could quickly lead to a fireplace fire getting too hot for the fireplace to handle.
oilcloth. (textiles). A fabric coated with a mixture of oil and clay, used as a waterproof covering. A floor covering made of a heavy fabric treated with oil paint.
verb (used with object) 1. to spread or daub (an oily, greasy, viscous, or wet substance) on or over something: to smear butter on bread. 2. to spread or daub an oily, greasy, viscous, or wet substance on: to smear bread with butter. 3. to stain, spot, or make dirty with something oily, greasy, viscous, or wet.