Its been one of those Saturdays were I just got caught up doing a lot of little things...Just started the stove about an hour ago..Mind you its about 25F here with a real feel of about 6F..Cold stack for sure... Got it going with some very old Pine I used for kindling along with some Ash...Before I knew it was roaring!! Looked out the picture window and it was snow.....Black flakes from my stack...more than most..Heard a little crackling and popping inside the stack as well...Went out to shovel a little to take a peek at the stack outside....All is fine but man...that was crazy for about 10 minutes...
No..Not at all...The guy that cleans them in the summer says its actually good to blow out those small flakes every now and then, It means I'm burning just right...
Checking for damage is smart however unlikely it is to have happened. Just burning wood dry wood should be enough to keep buildup minimal. Burning real hot as a general practice probably shortens the life of your setup. I know the OP’s post might be a little tongue in cheek, but wanted to throw that out there if someone new is reading .
Masonry does not like that sudden cold to hot shift. Not sure what the ops stack is made of. I’ve seen exterior stick chimneys split from bottom to top when REALLY cold and fired fast and hot.