The range of working temperature isabout: 122°F / 50°C-662°F / 350°C, higher the temperature, faster it starts to The fan uses upgraded technology, faster speed, and greater air volume without any The size of this Heat Powered Stove Fan issmall in volume and fits narrow spaces Idealfor all kinds of wood-burning stove, pellet stove, You can enjoy the warm air in a quiet environment Our stove fan composed of 6, can produce more warm air and improve the efficiency of the product, give you benefits This fan requires no batteries or external power, it ispowered by the heat produced by your or wood-burning stove; The heat of the stove top isconducted through the base of the fan and converted to electricity which the fan motor This low-maintenance fan will help keep your home warm This fan ismade from aluminium alloy, wear-resisting, with good thermal conductivity, Manufacturer: HDOYTXXM