Maximize heat output from your log stove with our heat-powered fan. Rust-proof and wear-resistant, it's built to last and designed to distribute heat around your room when placed over burning logs. Note: Avoid exceeding motor temperature limits.Specification:1. Product structure1. Metal handle 2. Heat sink 3. Bimetal heat insulation device2. Specifications1.Model: BLFS2.Color: black3. Power supply equipment: thermoelectric module (thermal power supply)4. : aluminum5. Airflow: 203CFM6. Starting temperature: 40?7. Working temperature: 50-400?8. Noise : 15-18db9. Recommended distance: 10-15CM10. Size: (approx.)30*22*10cm/11.81*8.66*3.94 inchesFeatures:1. Automatic adjustment: The fireplace fan can start automatically and adjust the speed according to the temperature of the stove.2. Low energy consumption: low consumption, high efficiency, can increase room temperature by 41%, save energy costs up to 16%, no batteries or power supply required, more environmentally friendly.3. The furnace's thermoelectric fan does not use batteries or electricity to increase the heating efficiency of the furnace, which allows warm air to flow through your room faster.Working principlesThermoelectric stove fans use thermoelectric technology to convert temperature differences into electrical energy. There is a unique thermoelectric module in the center of the fan. When heated, the module produces hot and cold surfaces, allowing electrons to flow into the module and generate electrical energy to operate the fan.This is also called the Seebeck effectNote: Thermal furnace fan will not bring about a direct temperature increase, but is just a tool to accelerate the heat transfer of the chimney. Make sure the stove fan is placed a flat surface.Packing List:1*Wood Stove Fan?