6 Blades: Upgraded technology, 6 blades provide faster speed and greater volume. And the stove wood used is 28% less, which is more environmentally friendly. Heat Powered: No batteries or mains electricity required, the thermoelectric module acts as a small generator to power the fan’s motor. Powered by the heat produced by wood, coal or burning. Anodized Aluminum: The bracket of this fan is treated with anodized aluminum, which will not deform or discolor even if it works for a time at high temperature. Bimetal Safety Device: The fan base is equipped with a bi metal safety device that gradually the front of the fan to provide protections for the TEG and motor. Noise : Silent, spread heat around room and increase temperature with low noise, improve warm circulation results in greater comfort. Item Type: Fireplace Fan Material: Aluminium alloy Gross Weight: 773g / 27.3oz Blades: 6 blades Operating Temperature Range: 176°F to 482°F, 90°C to 250°C CFM: 160-220 Speed: 1400rpm Noise:? 25db. Our listing price includes the value of goods, packaging cost, and export. Please check with your country’s. We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. Post a message again because sometimes our message system may block some emails. If you are satisfied with our service, pls. Our aim is to provide Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy. We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.