No sir, not scared, but you are correct...they need work...especially the furnace flue. Looks horrible doesn’t it? On the wood chimney I’m not sure what happened with the guy that laid it years ago. All those joints being offset...it just doesn’t make any sense how it happened. I’ve been told that in many of the older tiles...at least some of those in my neck of the woods...were not made very even. I have no way of confirming that statement...other than my own chimney.
There is fairly low risk of a safety issue with the furnace chimney. You could get some water damage but as long as you make sure falling liner prices don't block the flue it should be pretty safe. The wood stove liner is no longer doing its job of containing the products of combustion. That means it is allowing creosote to get outside of that liner which could catch fire in the case of a chimney fire. So scared or not you are exposing yourself and anyone in your house to a greatly elevated risk.
For anyone stumbling across this and looking for information... DO NOT listen to anything hoytman has suggested. The fact that you're rationale of "If it lasted this long, I'm sure it will be ok" is how your justifying this is completely wrong. And if that is how you do think, please don't come to an informational online message board and state your "opinions" as being correct. I'm new here but frequent Hearth.com, and I think that is the same Bholler above from Hearth.com. He is a professional sweep and a chimney/wood stove genius.
I think a lot of people have given really good advice in this hijacked thread. Hopefully anyone looking for advice can tell the professional, safe guidance from potentially dangerous advice based on personal preference.
Yes Webby gave very good advice before I joined in. I absolutely agree with everything he said. And it's kind of fun to not have to be nice like I do on hearth. Lol
All that other gibberish aside..who the hell wants to try to brush an 8x11" rectangular flue, and remove the creo from the bottom where it connects to the round pipe?? Give Earnie the money, or better yet install the insulated 6" stainless liner yourself, and congratulate said self every time you brush your chimney and are finished in ten minutes.