Man installs outdoor cooling system to stop gaming PC overheating his room

EntertainmentbyJoe PringPublished: Nov 11, 2026, 13:07Add as a preferred source on GoogleFollow on Google News

A man has spent two months building an outdoor cooling system to stop his gaming computer from making his room too warm.

The builder explained that he decided to take advantage of freezing winter temperatures by installing part of his PC’s cooling system outside his house.

PC builder uses freezing weather to cool gaming setup

With temperatures dropping to -4°C (25°F), they mounted a radiator and two fans outside their house, connecting them to the PC through a wall.

Explaining how the system works in a Reddit post, they said it pumps liquid outside to cool it before sending it back into the computer, keeping temperatures down without heating the room.

He also revealed that the project was partly motivated by wanting to overclock his computer, having previously reached the temperature limits of his existing cooling system.

However, getting everything working took some effort, including having to install sensors and write software to prevent the liquid from becoming too cold, which could cause condensation to form on the PC’s components.

Several problems were encountered along the way, including an electrical fault and accidentally flooding the computer after forgetting to close part of the cooling system.

The result, they say, is a CPU that now runs at around 40-45°C (104-113°F) with the outdoor system activated, compared to 60-65°C (140-149°F) using conventional cooling after a separate processor modification.

More importantly, his room no longer heats up during gaming. In fact, the cooling system might be working a little too well.

“When the fans in the pc are running, […] it becomes a freaking air conditioner and my feet start to freeze.”