Features: brand new and high quality Our stove fan composed of 5 blades, can produce more warm air and improve the efficiency of the product, give you maximum- benefits. The stove fans start automatically when placed on top of a stove and adjust their speed with the stove temperature. As the stove burns down and cools, the fans automatically shut off. This eco-friendly fan requires no batteries or external power, it ispowered by the heat produced by your fireplace or wood-burning stove; The heat of the stove top isconducted through the base of the fan and converted to electricity which powers the fan motor. This low-maintenance fan will help keep your home warm. This fireplace fan ismade from rust-proof anodized aluminum, wear-resisting, with good thermal conductivity. The fireplace fan uses upgraded technology, faster speed, and greater air volume without any noise. The size of this Heat Powered Stove Fan issmall in volume and fits narrow space. Idealfor all kinds of wood-burning stove, pellet stove, etc. You can enjoy the warm air in a quiet environment. The fan base is equipped with a bi-metal safety device, if the surfaces temperature exceeds 250°C, the safety device gently lifts the front of the fan to protect the TEGand motor. Specifications: Material:Aluminum Alloy Operating temperature range: 122°F-662°F (50°C~350°C) Air volume range: 160-220 Wind speed range: 1000-1600rpm Noise: ≤25db Size:Approx. 140x100x158 mm/5.51x3.93x6.22 inches Package Includes: 1x Fireplace Fan note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.