A YouTube channel, 'Fireplace 10 hours,' launched nine years ago with a single 10-hour video of a fireplace, has reportedly earned over $1 million in ad revenue. The channel, with 111,000 subscribers and over 150 million views, benefits from its ambient audio and visual appeal, particularly during colder months. This success mirrors other channels featuring looped content like rain or lo-fi music, which also monetize through ads and subscriptions.