I had my stove installed last year it is a Haman insert with a zero clearance box the chimney has 2 45 degree pipes then goes straight up through my garage roof and extends past the roof 3 feet. roughly about 9 feet of pipe. i was planning on cleaning the pipe after my 1st ton but broke my leg and cant get on the roof for another month. i do clean the stove every week and vacuum everything out except the chimney. everything was new when it was installed. but dont want to have a problem was thinking of having someone come to clean it. i was on the roof at the start of this year and looked down the pipe and it was clean visually. just looking for opinions i think i can wait but just checking thanks