I have been watching the Acurite indoor thermometer that I have and my room was at 81F. Since I turned on my laptop, I noticed the temp has increased between 6-7 degrees. I'm not running any CPU intensive apps like 3D games or Photoshop. I have Chrome open with one tab and Firefox open with two tabs. The only other apps that are open are iMessage, Atom, and Slack. I definitely feel the heat coming from the machine as I'm typing on the keyboard. I haven't checked the internal temp of the laptop, but this isn't the first time the machine has generated an excessive amount of heat. It may have something to do with the fact that after I reach 100% charge, I do let it continue to charge if I'm watching a video or running an app that I know will drain the battery more than usual. IIRC, once the machine has reached 100% battery capacity, it does not continually charge and overcharge the battery. One more thought I had is to pick up a cooling pad for the laptop, but I'm not too sure how well those work out and have no personal experience with them. I'd like to keep myself cool and not be sweating in my room, though.