Description: Fireplace fan working principleThe fireplace fan automatically controls the heat and speed according to the temperature of the pan and does not require batteries or electricity. When the base temperature reaches about 60, the fan starts to work, and the working temperature is between 60 and 350. The higher the temperature, the faster the blades spin. When the fireplace stops heating, the fan spins slower and stops working when the fireplace cools down. The stove fan made of durable materialThe base and blades of the fireplace fan are made of aluminum anodized to prevent the fan from rusting or corroding. It is durable enough to be used for a long time. Automatic and Quiet Operation Fireplace FanThe fireplace fan operates quietly and has good air circulation. Avesa unique blade design, the stove fan can promote more hot air without noise. No noise. Enjoy the warm air in a quiet and comfortable environment. Efficient Fireplace FanMaking full use of the heat from the wood stove and spreading it around the room. The fan circulates hot air at a speed of 370 CFM (cubic feet per minute) and wood consumption has been reduced by 28%. Enjoy the warmth in your room and improve your comfort. Wood Stove FanEasy to use, no assembly required, just place the stove fan on the hob, the fan rotates as temperature rises. Features: Fireplace fan requires no electricity or batteries. It uses the heat from your stove to power the fan and efficiently distributes heat throughout your room. With a stove fan, hot air circulates around your room to warm a cooler room faster. Without a stove fan, the heat generated by your stove collects around the stove and escapes up the chimney. Technical specifications: Material: anodized aluminium ColorBlack Number of blades: 4 Starting temperature: 60/ 144F< /p> maximum operating temperature: 350/ 662F recommended operating temperature: 85-350/ 185-662F Air volume unit: 370 CFM Sound level: &lt;25dB Certification: CE RoHS Blade length: 80mm Rotation speed: 1350 rpm Weight: 540g Size: 18x11x19cm < /p> Scope of delivery: 1 x fireplace fan 1 x Instruction Manual Note: Never touch the base of the stove fan or place Do not place the stove fan on an unprotected surface when hot. When moving or carrying the Always use the extended handle. ible when wearing gloves. Keep the fan out of reach of small children when in use. For different types of chimney, due to the different material on the top of the chimney, the thermal conductivity will be different, the fan start time is also different, about 3-5 minutes. If the core temperature reaches over 60 and the fan still does not rotate, you can move the fan manually to operate the motor.