It is possible that during a standard chimney sweep one of our professional chimney sweeps may advise you not to use your appliance as the flue still contains flammable deposits which are impossible to remove through standard or rotary sweeping methods. These deposits are un-burnt volatile fuel which is likely to cause a chimney fire or blockage through expansion if not removed.
Although there are several methods available to achieve this many are extremely corrosive containing powerful sodium Hydroxide which is applied as a liquid causing a mudslide effect which smells and can seriously damage your home and chimney in some cases.
Clean sweep use only the Cre-Away pro method of creosote removal which is a dry powder method. This powder is applied to the creosote using a small compressor; the powder transforms the hard creosote modifying it over 2/4 week period into something that can be removed through standard sweeping methods.
Although there is an extra cost to this treatment it is usually very cost effective as the alternative is to remove and replace the chimney lining.
Tip: Burning wet or poorly seasoned wood will always cause creosote build-up in the flue system. Slumbering wood overnight with little oxygen is a also a major contributor. Always burn only dry wood and never cut of the air supply so that thick dark smoke is visible in the firebox ensuring moderate flaming combustion at all times.