I'm deciding whether to get dirty and clean my own chimney instead of paying a professional to do it so I can 1) save a little money, 2) do it more frequently (see #1). I have a hearth mounted Hearthstone Phoenix with about 30' of non-insulated SS flexible liner going through the original chimney flue. I'll have to use the "bottom-up" approach as the roof is way too dangerous and I don't have the ladder to get up there anyway (nor would I want to...my roof peak is about 37 feet up). Pretend for a minute that I have no idea how to do this, other than understanding it conceptually. What tools would I need? Would I make a huge mess of the hearth room? Should I just suck it up and pay the man? Thanks!