Conclusions 2 / One Hypothesis

• Perhaps vertical air circulation of the stack effect is governed by the same principles as horizontal convection--the term "stack effect" may be misleading.
• It may be that any lengthy space, whether vertical or horizontal, will display the same convection properties if there is a three degree temperature difference between the ends.
• Gravity is a weak force; the wind doesn’t blow much, up and down.

Perhaps it is unwise to try to design a stack effect into a building, and much better to try to connect a naturally warm outdoor area to a naturally cool outdoor area.

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