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.
1. oil-a slippery or viscous liquid or liquefiable substance not miscible with water. sassafras oil-oil from root bark of sassafras trees; used in perfumery and as a disinfectant. calamus oil-carcinogenic oil from calamus root used as a perfume. mustard oil-oil obtained from mustard seeds and used in making soap.