generate questions: A solar chimney (or thermal chimney, in this context) is a passive solar ventilation system composed of a vertical shaft connecting the interior and exterior of a building. As the chimney warms, the air inside is heated causing an updraft that pulls air through the building. Performance can be improved by using glazing and thermal mass materials in a way that mimics greenhouses.
What kind of system is a solar chimney? {sep_token} What is a solar chimney? {sep_token} What is a solar chimney made of? {sep_token} How can the performance of a solar chimney be improved?