1- When we dream of chimneys we are linking with a very old concept, that of escape from the mundane and ordinary into freedom. Any opening in a roof of a temple, tepee, tent, etc. represents the awareness of a change of state that may be an important part of growth.
2- Psychologically, a chimney and the passage of smoke portrays the channelling of energy’ in a more productive way than is presently occurring.
3- Dreaming of a chimney indicates that escapc to the heavens through the solar gateway is possible.... Ten Thousand Dream Dictionary