Heating Area: Approximately 30-40 m² Dimensions: 31x43x54 cm 12x17x21 inches Weight: 40 kg 88lbs Material: The top plate, bottom plate, firebox, and lids are entirely made of cast iron. The sides are covered with enamel-coated sheet metal. Fuel Type: Specifically designed for wood use but also suitable for burning coal. Chimney Diameter: Standard 13 cm. (5,12 inches) If needed, we can provide an adapter to increase the chimney diameter to 15 cm (6 inches)