Feature:1. Enhanced Airflow: The wood stove fan is designed with dual 4 blades design, providing strong airflow and increasing room ventilation efficiency by over 55 percent.2. Heat Powered: Powered by stove heat, no battery or electricity required. The fireplace fan automatically starts rotating when stove temperature reaches a certain range.3. Overheat Protection: Equipped with dual metal safety devices at the bottom. Fan corner slightly lifts when approaching maximum working temperature to protect core module and motor.4. Quiet Operating: With only the blades as moving parts, noise level below 25dB even at top speed. The heat powered fireplace fan promotes heat circulation and warmth without disturbance.5. Sturdy Construction: Made with high strength anodized aluminum alloy material, the 8 blades stove fan is sturdy, resistant to rusting and erosion, with excellent heat conductivity. Suitable for wood burner, stove, firewood, fireplace.Specification:Item Type: 8 Blades Wood Stove FanMaterial: Aluminum AlloyFan Blade Diameter: Approx. 125mm / 4.9inStartup Temperature: 70Best Operating Temperature: 80-250, do not exceed 345Weight: Approx. 880.00g / 31.04oz.Package List:1 x Fireplace Fan1 x Instruction Manual