The PCBuild subreddit has long been a place where particularly capable hobbyists are happy to show off their skills, and one of the latest additions to the community is getting a ton of attention.
I don't know how common cast-iron radiators are in the rest of the world, but in Canada, they're still found in plenty of old homes, dutifully heating rooms in the cold months. They're designed to expel heat in the most efficient manner possible using an array of fins, similar to how many PC cooling components operate.
