Features 1、HEAT DRIVE: Upgraded technology, bring faster speed, more air volume. Driven by heat from wood, coal or pellet burning stove 2、COMFORTABLE AND ENERGY SAVINGS: Stove fan provides greater comfort and uses 28% less wood in the stove 3、NO ELECTRICITY REQUIRED: The thermoelectric module acts as a small generator to drive the fan motor. No batteries or electricity required 4、NO DEFORMATION AND DISCOLORATION: The furnace support is treated with anodized aluminum, which will not deform and discolor even if works for a long time at high temperature 5、SAFE PROTECTION: The fan base is equipped with a bi metal safety device, the safety device gradually lift the front of fan to protect TEG and motor Specifications Item Type: Heat Powered Stove Fan Blades: 5 Blades Operating Temperature Range: 176℉ to 482℉ (80℃ to 250℃) CFM: 160-220 Speed: 1400rpm Noise: ≤25db Material: Aluminum alloy Weight: 771 g / 27.2 oz(approx.) Package List 1 x Heat Powered Stove Fan 1 x User Manual