A. The speediest remedy is to open the door or window: but by far the best remedy is to carry a small tube from the hearth into the external air.
Q. Why is that the best remedy?
A. Because the fire will be plentifully supplied with air by the tube; the doors and windows may all remain air-tight; and we may enjoy a warm fireside, without the inconvenience of draughts and cold feet.
Q. Why is a chimney raised so high above the roof?
A. If it were not so, it would smoke; as all funnels do which are too short.
Q. What is meant by the funnel, or flue of a chimney?
A. That part of a chimney through which the smoke passes, is called the funnel, or flue.
Q. Why does a chimney smoke, if the funnel be very short?
A. Because the draught of a short flue is too slack to carry the smoke up the chimney.