If you don't, all that smoke and heat will have no place to go but into the room. so the answer is yes.
It needs to be open when lighting a fire. Close it when not in use. If you have any doubt which is which, look up the flue with a flashlight.
To determine if the flue is open, you can look up into the fireplace or stove chimney to see if the flue is clear and unobstructed. You can also feel for airflow coming down the chimney when a fire is not burning. If you feel air coming down, the flue is likely open.
To open a chimney flue, locate the handle or lever typically found near the fireplace or stove. Pull or push the handle to open the flue, allowing air to flow through the chimney. Make sure the flue is fully open before starting a fire to ensure proper ventilation.
To open the flue in a fireplace, locate the lever or handle typically located near the fireplace opening. Pull or push the lever or handle to open the flue, allowing smoke to escape through the chimney. Make sure the flue is fully open before starting a fire to ensure proper ventilation.
When the fire is burning, until the ashes are cold. The damper should be open at these times.
At the beginning of fall, before you build a fire in your fireplace make sure to open the chimney's flue.
To determine if the chimney flue is open, shine a flashlight up the chimney and look for light coming through the flue. If you see light, the flue is open. If not, it may be closed.
NO. a flue should never be closed when a fire is lit. It is the way poisonous gases like carbon monoxide are taken out of a room,hallway or any enclosed space. flues can be closed only when a fire is not being used,to keep out draughts on windy days.
Well, we don't know what IT is- you did not share that with us. However, many spray insecticides are combustible- they can burn. IF you used an insect spray in a fireplace, you should wait several hours before lighting a fire, and give the flue time to air out. Or you may get a large KAWHOOF when lighting the fire. Be sure that a large wasp or hornet nest has not blocked the flue.
When there is a fire in the fireplace, the flue should be all the way open. Otherwise, some smoke and unhealthful gases will come out into the room. The damper should be all the way closed to keep out wind or cold air when there is no fire in the fireplace.
When burning the firplace, flue must be open to avoid death/ illness from carbon monoxide.
To open the chimney flue, locate the handle or lever typically found near the fireplace or stove. Pull or push the handle in the direction indicated to open the flue, allowing smoke and gases to escape through the chimney.