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Short #36 - Stack Effect
In this short podcast episode, we talk through stack effect. We explain what it is and what sorts of comfort issues it can cause in a home.
Most of us understand that hot air rises even though heat itself doesn't rise. The stack effect is precisely a version of that piece of common knowledge; hotter air is less dense than cooler air, so it floats above the cooler air. In hotter air, the molecules move a lot faster than they do in cooler air, so they can start to separate from each other, which reduces the overall air density.
For the most part, we don't work pressurize air in HVAC work (not…
The skinny
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