Hello, I have a chase that runs up my wall for my stove pipe around 25 feet. My problem is how can I safely get my pipe run down to my stove ( zero clearance fireplace)? The chase is very tight for me to get into and find it hard to work in. Is there a way to lower the pipe down from the top of the chase, one section at a time, and not harm the pipe? The pipe is 8" double wall 3' lengths of supervent. By the time I get several sections together it will weigh quiet a bit. Any help appreciated.