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I show you how to make fat logs at home that can be made with used oils and various combustible materials (cardboard, sawdust, shavings, paper, pellets, etc.) Each log reduces fatty waste that is difficult to manage and will heat your home for free. kitchen grease collector on amazon: https://amzn.to/3U7g84C 0:00 Intro 0:14 explanations 6:00 manufacturing 13:12 combustion test 17:19 conclusion