Terminology

Flue	Air channel that allows the smoke or exhaust up the chimney
Damper	Regulates the amount of smoke that goes up the chimney
Hearth	The floor of your fireplace
Make up air	This is the air needed for combustion or proper venting
Negative pressure	Will cause odor and smoke to come back into the home
Seasoned fire wood	That is wood that was split and let to dry for 1 year
Heating the flue	Some heat the smoke chamber with a torch of news paper to start draft
CFPM	Cubic Feet of air Per Minute, rating for airflow, for dryer vent
Louver	This is a vent with flaps that close automatically when the dryer turns off

If you are not sure please just ask.