der8auer tests PC chimney effect, dropping CPU temps by 19°C with a 110cm 3D-printed tower

Aug 2, 2026 - 11:30
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der8auer tests PC chimney effect, dropping CPU temps by 19°C with a 110cm 3D-printed tower

Building one meant understanding what a chimney actually does, which isn't quite what the forum posts assume. Hot air rising is just convection, and it happens around anything warm. A chimney works because that rising air is trapped inside a tall channel, so as it climbs it drags cool air...

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