1. No need of any electricity, cords or batteries. Self-powered by using the Seebeck effect. 2. Fan speed varies automatically with stove or fireplace temperature. 3. Anodized high efficiency blade design for greater airflow. 4. Maximize energy from the stove and reduce fuel consumption. 5. Virtually silent operation. Gently circulate heat throughout the room. 6. Built-in protection system to stop the fan overheating. 7. Working temperature: 50 degrees Celsius ~ 350degrees Celsius. 8. AirFlow: 160 ~ 210CFM 9. Work on wood, gas or pellet stoves. Completely assembled to use, just place it on top of stove. 10. Size: 13.5 x 11 x 22.5cm
