Features: 1Thermal power supply, no need to use batteries or electricity, can efficiently circulate warm indoor air. 2This 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. 3The unique fan blade is more capable of driving warm air with greater airflow and almost no noise during work. 4High safety coefficient, the heat?powered fireplace fan will rotate faster as the temperature rises, and slower as the temperature decreases. 5There is a thermoelectric module on the fan, which acts as a small generator to drive the fan motor. 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 Included: 1 x Stove Fan 1 x Instruction Manual