1、Made of high quality material, not easy to rust or fade, durable in use 2、Silent operation and eco-friendly stove fan, it won't disturb you while working 3、Fuel consumption is as low as 17%, fuel-efficient and enjoy heat faster from the stove 4、No batteries or electricity needed, just generate power by converting the heat into electricity 5、The maximum air volume is 203CFM and the minimum starting temperature is only 40 degrees (The test environment temperature is 20 degrees). Features: Made of high quality material, not easy to rust or fade, durable in use. Silent operation and eco-friendly stove fan, it won't disturb you while working. Fuel consumption is as low as 17%, fuel-efficient and enjoy heat faster from the stove. No batteries or electricity needed, just generate power by converting the heat into electricity. The maximum air volume is 203CFM and the minimum starting temperature is only 40 degrees (The test environment temperature is 20 degrees). Heat powered fireplace fan use thermoelectric technology to convert temperature differences into electrical energy. There is a unique thermoelectric module in the center of the fan. When heating, the module generates hot and cold surfaces, and the thermal pad flows into the module and generates electricity to operate the fan. Specification: Condition: 100% Brand New Material: Steel Operating Temperature Range: 104℉~698℉ (40℃~370℃) Air Volume Unit: 203CFM Power: Thermoelectric Module Language of Instruction: Germany, USA, Japan, Italy, Spain, France Product Size: Approx. 21.7*19.4 cm / 8.5*7.6 in Base Size: Approx. 9.2*7.6 cm / 3.6*3.0 in Weight: Approx. 806g / 28.4 oz Package list: 1 * Stove Fan 1 * User Manual Note: 1. Please allow 0-2 cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.