Why Is It Important To Have Ventilation For Your Fireplace Or Stove
A fireplace or stove needs air to burn cleanly and to send smoke up the flue. Modern houses are draught-proofed. That is good for heating bills and hard on an old chimney.
If the room is starved of air, smoke can come back into the room. You may also get a lazy fire, dirty glass and more creosote.
Never block purpose-made vents. If we find a draw problem after sweeping, we will talk through ventilation, cowls and whether the flue itself is the issue.