Yes I should do mine too before the roof gets too treacherous. When I was on the fire department this time of year was always extra pay every month because the volume of chimney fires would really spike. 

 Have you ever used Chimfex chimney fire extinguishers? Are they any good? 

 I have not. When I was on the department we just used a charged 1 1/2” line and a long piece of chain. It usually made a pretty good mess in peoples living rooms though. That was a long time ago. 

 They are like a road flare you throw in the stove. It's supposed to remove the oxygen. It keep a couple around, but never had to use one.