General description The 4 Blades Thermodynamic Stove Fan is an eco-friendly and efficient accessory designed to enhance the warmth distribution from your fireplace or stove. This fan operates without batteries or electricity, utilizing heat from the stove to generate power and drive its motor, ensuring a quiet and effective performance. Technical specifications Operating temperature: 50 ~ 350°C (122 ~ 662°F) Airflow: 62-105 CFM Speed: 436-1470 RPM Noise level: < 25 dB Material: Anodized aluminum Color: Black Size: 178 x 140 x 90 mm (7.00 x 5.51 x 3.54 in) Net weight: 600 g (21.16 oz) Package size: 195 x 170 x 110 mm (7.67 x 6.69 x 4.33 in) Package weight: 860 g (30.33 oz) Installation Simply place the stove fan on a flat, smooth surface on top of the stove, near the side or back of the stovepipe. Ensure that the surface temperature where the fan is located is above 50°C for it to operate effectively. Usage The fan will start to operate when the stove reaches a temperature of 50°C. As