Do Chimney Sweep Logs Work. ... Many homeowners wonder if the chimney sweep logs or creosote sweeping logs really work to clean out fireplace flues and get rid of creosote residue so that the fireplaces are safe to use. The short answer is no, they don't work.

Do creosote cleaning logs really work?

Getting back to the question of “do those chimney sweeping logs really work?” the first part of the answer is yes, they do work – to some extent. These types of logs contain a chemical catalyst with can reduce the early stages of creosote buildup up to 60% with repeated use.

How often should you use a creosote log?

For the best results, you should use one log for every 60 fires. If you're not sure how frequently you use your chimney, keep track of every fire. You might hit 60 fires in two months, or it could take longer.