Solution – Having the chimney swept will either correct the problem or highlight where and what the blockage could be. The chimney sweep can then advise on what work will then be necessary.
Cold Air Up The Chimney
Solution – If a fire hasn’t been lit for a while, the air up the chimney can get cold. Cold air is heavy and if the flue isn’t heated quickly enough, the cold air will force the smoke back into the room. Initially, just burn newspaper as this will create a lot of heat quickly and will move the air upwards.
Downdraught is a brief flow of air down the chimney resulting in puffs of smoke being pushed back into the room. One reason for downdraught is that the chimney stack has been built too short and another could be trees, buildings or other large high objects interfering with the wind flow. To help with this problem, a cowl can be fitted on to the pot. It is advisable to ask your chimney sweep which type of cowl to use as there are many different designs suited for different problems. If the incorrect cowl is fitted, it may make the problem worse.