What do the experts here recommend for cleaning the chimney bottom to top? Getting on my roof is not an option right now because I don't own a ladder yet, besides the fact I hate ladders and my roof is waaay up there in a windy part of town, because it's wide open on a hil with no trees to block the wind. I've seen the drill powered methods and the fiberglass rods with brush, so can anyone make a suggestion? I've got about 20 feet of chimney from the cleanout, which is about 7 feet off the ground. Thank you!