Operating Temperature Range: 140°F/60°C - 662°F/350°C Dimensions: As shown in the picture Color: Black Number of Blades: 5 Starting Temperature: 140°F/60°C Material: Aluminum Noise: 25dB Speed: 1100rpm Package Includes: 1 x 5-Blade Heater Stove Fan Features: This stove fan operates by converting heat into energy, eliminating the need for batteries or electricity. The operating temperature range is approximately 140°F/60°C - 662°F/350°C. The higher the temperature, the faster the start speed. This stove fan circulates heat throughout the room. This stove fan is quiet and silent. Note: The temperature should not exceed 662°F when using the stove fan. Note: Due to manual measurement, please allow 1-3 cm for discrepancies and ensure your accuracy before ordering. Please understand that color may vary depending on the image placement. Our products are made of the highest quality materials and are designed to provide you with the best user experience. We strive to ship within three days of purchase, with an estimated delivery time of 8-15 days. When shopping, please pay attention to the product's dimensions and specifications to ensure it meets your needs. In the title and text, we provide detailed information about the product, including its features and specifications. We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please feel free to contact us. We are always ready to assist you and will do our best to serve you. Thank you for choosing our product. We hope you enjoy it.