Features: brand new and high quality. Environmentally friendly and energy saving: the improved hot air circulation of high temperature self-production can bring more comfort and the use of stove wood is increased by approx. 28%. Longer service life: the fan base is equipped with a bi-metal safety device. When the surface temperature exceeds 250C, the safety device gently lifts the front of the fan to protect the TEG and the motor. Product structure: aluminium heat diffuser plate, thermoelectric module, bimetallic thermal film, fan blades. Safe design: The bracket and base of the fireplace fan are treated with anodised aluminium, which can withstand high temperatures up to 400 C and does not deform or discolour even after prolonged working at high temperatures. Upgraded Chimney Fan: The fireplace fan is placed on the mantelpiece and uses the temperature/heat energy on the mantelpiece to generate power and power the fireplace fan. When the stove temperature is so low that the flame goes out, the rotation. The speed of the chimney fan slows down until it no longer rotates. The normal working temperature is 50C to 350C. Specifications: Material: Aluminum Alloy Size: approx 145x116x145mm/5.71x4.57x5.71 inches(LxWxH) Package Size: approx 200x185x210mm/7.87x7.28x8.27 inches Range of Working Temperature: 122F~662F(50~350) Air Volume Range: 160-220 Wind Speed Range: 1000-1600rpm Noise: 25db Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Fireplace Fan