Energy Saving: The 4-blade heat fan can convert more heat while improving stability. The energy conversion efficiency is very high, saving more energy. Self-Powered: The wood stove fan is designed to circulate the warm air created by a wood/coal or pellet stove operating at normal surface temperatures between 80°C and 300°C. Overheat Protection: When the temperature is higher than 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 Operation: 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 or near it. 【Auto Start】2018 Upgrade Technology, faster speed, larger air volume. Thermodynamic stove fans are designed to circulate the warm air produced by wood/coal or pellet stoves with a normal surface