A device for converting biomass having no timber value e.g., plants like twigs of big trees, shrubs viz. ipomea carnea, Tamarix dioica, Erienthus Longisitosus, seeds of pine tree, etc. into wood charcoal within a short time which can used as source of energy for cooking purpose or heating purpose during winter season, during which conversion the device can be used as a stove for cooking, using the same type of biomass as fuel.
