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This video, with the exception of the final firebox, is edited from fragments filmed over the course of 1.5-2 months. Due to this, inconsistencies may be observed. The proportions of the mixture of 1 part sawdust and 2 parts shavings are due to the fact that when burning a tablet made only of shavings, the tablet quickly falls apart and burns out in one fell swoop; when made only of sawdust, the tablet burns for a long time, but the burnt part does not crumble and you have to periodically use a poker. With the specified proportions, the tablet burns for a long time, and the burnt layer crumbles and is carried away by the flow of gases. Depending on the quality of the components, combustion lasts from 40 minutes to 2 hours. With this method, the likelihood of getting dirty with waste is very small.