Features: brand new and high quality. Energy Saving: Without battery or main power supply, the electric module can be used as a small generator to power the fan motor. High Quality Material: The fan base and propellers are made of anodised aluminium, which is wear-resistant and has good thermal conductivity. Improved Chimney Fan: The improved 6-propeller fan provides a larger air capacity and rotates the level of warm air around your home, but does not deliver hot air directly. Overheating Protection: overheating for protection, the built-in bi-metal strip at the bottom of the oven is designed to slightly raise the edge of the fan while protecting the motor and electrical module. Quiet Operation: Quiet operation, dissipates heat in the room, reduces noise, increases temperature and improves hot air circulation, resulting in higher comfort and reduces wood consumption in the oven. More stable and environmentally friendly. Specifications: Material: Aluminum Alloy Size: approx 16x13x19cm/6.30x5.12x7.48 inches(LxWxH) Package Size: approx 19.5x13x21cm/7.68x5.12x8.27 inches AirFlow：150-180CFM Noise: ≤45db Starting Temperature: 60°c (122°f) Maximum Working Temperature: 400°c (750°f) 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.