General description No batteries or electricity are required for this economical fireplace fan. It utilizes surface heat to automatically adjust its speed according to the surface temperature, ensuring efficient heat distribution. The fan operates quietly, consumes less energy, and enhances the overall efficiency of your wood burner, quickly heating the room while reducing fuel consumption. Technical specifications Material: High-strength aluminum alloy Bottom material: Rubber Quantity: 7 fans Maximum temperature: 250 degrees C Dimensions: 18 cm x 10 cm x 19 cm (7.09 inches x 3.94 inches x 7.48 inches) Package contents 1 heat-powered fan Other information