Hey guys I've been contemplating insulating the chimney and have come to the conclusion that I'm going to use the loose perlite. I just want to make sure this is the stuff to get obviously it seems like it is. I didn't realize it was a dry pour so i just need to pour it down that's it right. Anybody else use this stuff. It seems like a pretty good way to go. alright any help would be great. Here's the link where i found it.
http://www.hometownperlite.com/Masonry_fill_details.html
http://www.hometownperlite.com/Masonry_fill_details.html