Automatic Pipe Mounted 4 Blades Heat Powered Stove Fan. FEATURES: Start Automatically: Upgrade Technology, Reinforced 4 Blades, Faster Speed, Larger Air Volume. The Heat Powered Stove Fan is Designed to Circulate the Warm Air Created by Wood/coal or Pellet-burning. Efficiently Circulates Warm Air Throughout the House. Eco-Friendly and Self-Powered: Thermoelectric Module Acts As a Small Generator to Power the Fan's Motor. No Batteries or Electricity Required Improved Warm Air Circulation Results in Greater Comfort and Reduces Wood Consumption from Your Stove. Whisper Quiet: Newly Designed Blade, Larger Air Volume, Lower Noise. You Don't Even Know the Stove Fan is There, but You Feel the Warmth You Will Enjoy the Warm Air in a Quiet and Comfortable Environment. Safety Design: The Stove Fan Support is Made with Anodized Aluminum, Able to Resist High Temperature, No Deformation and No Discoloration Even After a Long Time Working Under High Temperature. Space Saving: The Stove Fan Can Be Fixed on the Chimney Pipe of the Wood/Log Burner/Fireplace, It Won't Take Up More Space. Longer Lifetime: There is a Biometal Safety Device in the Base of the Fan. If the Surface Temperature Rises Above Around 300°C, the Safety Device Gently Elevates the Front of the Fan to Protect the TEG and Motor. SPECIFICATIONS: Material: Aluminum Alloy Blade Quantity: 4 Airflow: 180-220 CFM Speed: 1450 R/MIN Start Temperature: 50°C Working Temperature Range: 140°F/60°C~662°F/350°C Size: 110MMx105MMx180MM NOTES: Never Handle the Base of the Stove Fan, Do Not Set the Stove Fan Down on an Unprotected Surface when Hot. To Move or Carry the Fan, Always Use Gloves. Please Keep Fans Away from Small Children when in Use. The Suitable Temperature is 60-350 °C. Temperatures Above This Range May Damage the Fan and Generator Set. INCLUDES: 1x Stove Fan 1x Metal Ring . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.