"Modern Metallic Black 4.3kw DEFRA Multifuel Stove + Direct Air Box - This compact 4.1kW stove features a low distance to combustibles, thanks to its rear and lower heat shield, which comes as standard. As one of the few Eco Design Ready stoves, it meets the rigorous standards of modern Eco-Designed buildings and is ideal for new builds and small living spaces such as boats, yurts, or cabins. Key Features - Eco Design 2022 Ready High Efficiency - 75.4% Wood / 79.2% Mineral Fuel Advanced Air Wash Ultra Clean BurnDEFRA Exempt for Smokeless Zones Nominal Heat Output - 4.1kw Wood / 4.5kw Mineral Fuel Fire Brick Lined Suitable For Use On 12mm Hearth Low Distance to Combustibles Top And Rear Flue Outlets 5""(125mm) Diameter Top and Rear Flue OutletComes with Direct Air Box."