1、Greater Wind: Upgraded 6 blades will provide larger air volume, diverting the warm air horizontally all around your house but not give you the hot wind directly. 2、Environmentally Friendly: The stove fan provides greater comfort and uses 28% less wood. It maximizes the heat from burning wood and is more energy efficient and environmentally friendly. 3、No Batteries or Electricity Required: The thermoelectric module acts as a small generator to power the fan's motor. Stove fans can generate their own electricity. 4、Anodized Stand: The fan stand is made from anodized aluminum which is rust proof, wear resisting, with good thermal conductivity. Even in the high temperature for a long time it is without deformation, no color. 5、Protection Function: The fan base is equipped with a bimetal safety device that gradually lifts the front of the fan to guard the TEG and motor.