How does an insulated liner help reduce creosote?
When you burn wood, the moisture in the wood (there is always a certain percentage) mixes with the creosote that is formed from burning wood and rises in the chimney as a gas (smoke). When the smoke hits the relatively cool chimney, the creosote and moisture turn back into a solid/liquid. The cooler the chimney, the more adheres to it, the warmer the chimney, the less adheres to it. To put it in simpler terms: It is much like the un-insulated windows in your house. Those single pane windows are always wet with moisture from the house in the winter time because they are cold. No matter how warm you keep it in the house, the moisture is still there. But install insulated double-pane windows and you have no moisture on the windows anymore. If you touch the insulated glass, it still feels cool compared to the indoor temperature, but it is warmed enough not to allow condensation. An insulated chimney works much in the same way, where as it is not as warm hot as the fire, but warm enough to
