[TheForge] Chimney creosote

[Walter Mullett]

Have any of you used those "Chimney Sweeping Logs" that are supposed to
remove creosote from your wood burning chimney's?  
 
I've been running the wood burner in my un-heated "old kitchen" wing at a
really low rate.  Consequently, I am getting more creosote than when it runs
at higher temperatures.  I have an air-tight unit with 5' of metal that
turns into a thimble near the ceiling and into the original masonry chimney.
A couple of weeks ago, my wife turned the unit way up.  When I checked it,
several places on the metal chimney were glowing red from the creosote
burning off in it.
 
I always inspect the metal and the masonry at least twice in the season.
The last two times I've removed the 5' metal sections, I've found about 1/2"
of creosote in them and this time, I see some in the masonry.  I clean the
metal by banging on the side but I don't have brushes for the chimney. 
 
Do these logs work?