I thought this might be interesting for all those who want to better understand chimney draft. My home had a chimney that was on an outside wall. Draft when getting the stove going was always an issue with a lot of preheating the chimney required before starting a fire. This winter we put an addition on the house on that side, so now the chimney is an inside chimney. The draft difference was AMAZING. I never get a house full of smoke now. So, consider insulating your chimney very well
WG

WG