Description: 4 Blade s Heat Powered wood Stove Fan Specification: Material: Stainless Steel Color: Black Power: Thermoelectric Module Operating temperature ran ge: 104 ° F to 698 ° F (40 ° C to 370 ° C) Product Size: 218MM x194MM (H x W) Base size: 92MM x 76.2MM (L x W)   Parameters: 1. Material: steel, not easy to rust or fade, durable and sturdy. 2. Can be automatically adjusted: the fireplace fan can automatically start and the speed can be adjusted according to the temperature of the furnace. 3. Low energy consumption: less consumption and high efficiency, th e room temperature can be increased by 41%, fuel costs up to 16%, no battery or power supply required, more environmentally friendly. The maximum a ir flow 203CFM.4. Can effectively warm the a ir throughout th e room, the fan will transfer the hot a ir into your room once the furnace is heated.5.You don't need batteries.6.The design of fan is simple and environment-friendly and quiet.  Package Included: 1 x Stove Fan