Blaze King Wood StoveSpider Mount Axial Fan (Sold individually).Thisfan isdesigned to circulateroom airaround theback and top of the stove / insert. As this room air travels around theunit it becomes heated. This increases the efficiency of the stove by allowing more heat to be transferred into the room and less heat to be lost through the exhaust.

*The fan blade is 4 diameter. The brackets are 4 apart from center of screw hole to center of screwhole. *