【Upgraded 6-Blade Fireplace Fan】Compared with ordinary 5 or 4 blade fireplace fans, the upgraded 6-blade stove fan heats up faster and has more air volume, is made of anodized aluminum, when the fireplace fan gets hot Will not rust or corrode. With a solid base,It will not shake or tip over even at maximum wind speed. A magnetic thermometer is included to monitor the oven temperature. 【Energy Saving and Environmental Protection】This heat powered stove fan does not require batteries or electricity and is designed to circulate the warm air produced by wood/coal or pellets. The 6-blade heat fan efficiently circulates the heat generated by the fireplace while increasing stability, has been tested and proven to save 37% on fuel costs and reduce wood consumption in the stove. 【Longer Service Life & Overheat Protection】The stove fan is equipped with a high temperature resistant chip, Usually the fan rotates around 55°C -75°C. When the temperature reaches about 250°C to 300°C, the fan has the