We are Manufacturer & Exporter of Wood Charcoal. The Wood charcoal as fuel energy. It made from wood. A hard, porous, highly carbonaceous product formed during the heating of wood without access (or with limited access) of air in furnaces and retorts (sometimes in campfires as well). Wood Charcoal Details as Below. Burning Time: 5 - 7 hours, Moisture: 6-8 %, Fixed Carbon: 75-85%, Calorific Value: 6500 to 7000 Kcal/kg, Ash Content: 1.5-2 %, Volatile Matter: 12.5 to 30%, Sizes: 20mm to 100mm, 30mm to 200mm (based on your request) Shape: Lump / Briquettes / block, Foreign Matter: 1 % made with physical methods, 100% pure hardwood No Chemical contents, ph value :7-9 Our charcoal can be use for both open and closed fires. smokeless coal for domestic use. recommended room warmer& barbeque Shape: lump No traces of soil or other elements. Long life burning burn without any smoke or fume during the initial ignition and during burning duration.