How much heat from vents on bottom of laptop

How much heat is expelled from the air vents on the bottom of the machine? I’m used to using a MacBook Air (2018) that has no vents on the bottom and I’m wondering how it compares in terms of comfort when using it positioned on your lap.



The bottom is intake. The exhaust is to the rear.


As Jake_Ritcher said- the bottom is where the air enters, so no hot air exits there. The bottom of the laptop does get quite hot under load though. I would say it’s within my comfort zone (when I’m full on stressing the CPU), but it’s close to getting too hot.

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