I've set up my computer right next to my bedroom door, and there's a small vent above it that's about 14 inches wide. The vent is located around 3.5 feet above my PC. The top of my computer has a flexible mesh cover held on by magnets. I've been considering venting the hot air from my PC into the room next door, but I've heard that I need to ensure the airflow is properly managed. If I got a 5-inch USB fan, attached it with a 3D printed housing to the vent, and connected exhaust hose from my PC to that setup, would that create enough negative pressure to vent efficiently? I haven't tried anything like this before, and I'd prefer to manage the heat without making my room stuffy, especially since venting outside seems a bit risky with animals possibly getting into the hose.
4 Answers
Honestly, you might find it easier to just run longer cables from your desk to the computer in the next room. It’s probably safer than trying to manage all that airflow with a DIY duct system, which could end up messing with your temperatures anyway.
Just go for it! If things get funky, you can always vent it out a window later.
Have you thought about upgrading your cooling instead? If your room is so hot that it affects your PC, venting it won't help much in the long run.
It's not that my PC is overheating; it just gets really stuffy in the summer. In winter, though, it's great because my room stays warm!
Does air even come out of that vent when your HVAC is running?
Nope, it’s not connected to the HVAC; it’s just a gap in the wall above the door with grates on both sides.

That’s actually a really smart idea! Moving the whole tower and using long cables sounds way less complicated than a makeshift ventilation system.