creosote question

[sleepie]

i cleaned the chiminy yesterday,,clay type,,and had a glass looking creosote about 3 ft or so down--i usually have crust at the top about a half inch by mid winter,,also only a few feet down---this fall i added 2 ft to the chiminey---but what is the glass looking stuff--it did not come off as easy as the crusty stuff last year,,as a matter of fact it was not peeling off, just scratching it---its about 1/16 of an inch at the worst spot at the top--should i be worried? please help--am i still safe??---thanks

 

[burntime]

I have always heard that the glaze stuff is from too much moisture in the wood. The other thing I hears is that it would need to be greater than 1/4 inch. My old insert into the 13 x 13 terra cotta would glaze but I used rutland and it broke it down.

 

[Henz]

I OPENED my SS chimney from the bottom yesterday and there was 6" of crusty creosote on it..I then brushed it a few times and I got about a 1/2 of a coffee can I would say