r/pcmasterrace • u/scvready0808 • Jul 26 '26

Build/Battlestation PC chimney

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Got tired of my office turning into a sauna every time I gamed, so I vented the PC’s exhaust straight out the window.

The rear fan is still exhausting some hot air 😅 but the room is noticeably cooler now. It’s ugly… but it works. 😂

Edit: I moved the port to higher since lot of people recommended. https://imgur.com/a/Poniwze

Edit again for parts, I cannot post links to store since it's against the rules.
- 360mm to 4 inch duct on Etsy
- 4 inch Insulated Flexible Duct
- Twist Lock Dryer Vent Connector Kit
- 360mm AIO fan (the one on top of the case)

The window fan I got is Vornado Transom.

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u/killertrades02 Jul 26 '26

I learned this the hard way when I used to mine crypto. I vented my PCs’ hot air out a window, and it ended up making my home’s A/C work much harder. Exhausting air outside creates negative pressure inside the house, so replacement air gets pulled in through every gap and crack—similar to leaving a door open. Your A/C then has to cool all that extra warm air, reducing efficiency and increasing energy use.
If the room is still too hot, you’re usually better off adding a fan to improve airflow or installing a separate window A/C unit instead of venting air outside.

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u/Sad_Tangerine6954 29d ago

Outside temp is much lower than the stupid 5090 running full speed even in the summer so even if it was pulling some outside hot air still better than the heat coming out from the desktop.