Features: The Heat Powered Stove Fan operates automatically using thermal energy from your fireplaces, requiring without external power while efficiently circulating warm air with its 172mm 4 blade aerodynamic designs for optimal heat distribution. Engineered with oxidation resistant aluminum alloy, this quiet blower (under 25dB) features temperature responsive rotation (60 350℃ ranges) and sturdy construction for efficient performances in high heat environments. Ideal for homeowners and cabin enthusiasts seeking quiet, energy efficient supplemental heating solution without electrical dependencies. Perfectly complements wood burning stove in living rooms, bedrooms, or bucolic cabins, ensuring even warmth dispersion during winter night while maintaining peaceful ambiances. Its smart thermal regulation automatically accelerates blade speed as stove temperature rises, maximizing airflows efficiency across 360 degree while withstanding prolonged exposure to extreme heat conditions. Specifications: Size: Approx.172x185.2x83.8mm/6.77x7.29x3.29inches Materials: Aluminum Alloy Color:Black/Yellow/Red Package Includes: 1Pc Thermal Powered Fireplaces Fan note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.