1. To save fuel, the fan distributes heat from the furnace to provide better fuel efficiency. 2. Generate electricity by yourself, no plug, no battery; 3. Operation is quiet. 4. Start by yourself, adjust the speed and stop. 5. Simple, stylish design. 6. Parameters: Air volume: 160-210 Wind speed: 1200rpm Number of leaves: 3 leaves Noise: 25dB Working temperature: 60-350 degrees Celsius Material: Alumina