I've spent the entire day today fitting a flue liner. After my chimney fire last year I thought I had better fit one. Tied a rope on the end and climbed up the roof and pushed the liner in, the first 6ft was easy but after that down pull up push probably 3" a time. Then it got completely stuck, I had to cut a hole in the chimney stack in the loft to free it. Iam knackered from climbing up the roof and loft about 50 times but now sitting with a beer in front of my new 14kw woodburner.