NIce, MIke.
And important consideration is your roof pitch for your chimney pipe. If it is a steep pitched roof, you need more pipe sticking out above roof line, which means more cooling of the exhaust, and more deposition of creosote. If you have a steep pitch, you might be in an area with a lot of snow, and its cold. More pipe sticking out into the cold air is worse, yet.
You have to burn it hot to minimize deposits.
Insulated pipe will make a huge difference, from what I gather, which stands to reason.