Feature: 1. Thermal power supply, no need to use batteries or electricity, can efficiently circulate warm indoor air. 2. This is a fan that uses heat to generate electricity as an energy source, to circulate the hot air generated by the wood burning fireplace. By making the most of the heat generated by the wood stove and distributing it to your room, you can enjoy the warmth and increase the comfort in the rooms. 3. The unique fan blade is more capable of driving warm air with greater airflow and almost no noise during work. 4. High safety coefficient, the heat‑powered fireplace fan will rotate faster as the temperature rises, and slower as the temperature decreases. 5. There is a thermoelectric module on the fan, which acts as a small generator to drive the fan motor. Specification: Condition: 100% Brand New Item Type: Stove Fan Material: Metal Color: As shown in the picture Size: Approx. 19.7x15x11.9cm / 7.8x5.9x4.7in Blade Radius: Approx. 9cm/3.5in Weight: Approx.822g/29oz Application: Used in fireplaces to promote indoor temperature. . Package List: 1 x Stove Fan1 x Instruction Manual Note: 1. Please allow 1‑2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.