Energy Saving: The 4-blade heat fan can convert more heat while improving stability. The energy conversion efficiency is very high and saves more energy. Self-Powered: The wood stove fan is designed to circulate the hot air generated by a wood stove/coal or pellet stove operating at normal surface temperatures between 80 °C and 300 °C. Overheat Protection: When the temperature is over 350 degrees Celsius, this fireplace fan will gradually insulate the contact surface of the chimney and the fan will stop working to protect the normal operation of the machine. Easy to Use: There is a hook on the stove fan for easy carrying, no installation is required. Simply follow the instructions to place your stove fan on the side of the wood stove or fireplace, not directly in front of it or near it. 【Auto Start】2018 level upgrade technology, faster speed, larger air volume. Thermodynamic stove fans are designed to circulate hot air generated by wood/coal or pellet stoves with a normal surface