This line of inquiry is the key to proving or debunking this. Apparently a few here think that the chimney will fall over when the sun goes down. This analysis

This line of inquiry is the key to proving or debunking this. Apparently a few here think that the chimney will fall over when the sun goes down. This analysis fails to capture the fact that the upper troposphere also cools when the sun goes down - resulting in a maintained differential between the input and the output.