Compact Size--8.7 x 6.7 x 3.6 inches,the material is aluminum.
No Batteries or Electricity required--The stove fan uses heat from the stove surface to spin,adjust its speed automatically with the stove surface temperature
Longer lifetime--There is a Bi-metallic safety device in the base of the fan.If the surface temperature rises above around 300?,the safety device gently elevates the front of the fan to protect the TEG and motor.
Whisper-quiet--The only moving part is the blade assembly.You don't even know this fan is there,but you FEEL the WARMTH!
Less Consumption ,More Efficiency--Reduce the fuel consumption and make the room warmer quickly