Between the 5090 and my loop, my office was getting roasted even with a dual-hose AC. Room felt like a sauna every time I gamed. So I built a setup to vent all the PC exhaust outside instead of just blowing it around like a fart in a closet.
Made a shroud over my 360mm top rad
Hooked up two high-speed fans to a duct blowing straight out the window
Turned the rear case fan into a second exhaust, added another fan + duct
Built a clean-looking wood insert so I didn’t have janky plastic flaps hanging out the window
Tied it all together so both ducts push heat outside while the dual-hose AC keeps the room cold