This is a genuine replacement blower for several Napoleon gas fireplaces. Part Description: The blower helps circulate the warm air in the fireplaces around the room in a much more efficient manner. After a few years of use, the blowers on Napoleon fireplaces may need replacing. If your blower is loud, it may be loose metal. If its not loose metal, then the blower will need replacing as they are unable to be serviced. Please check part number in your manual, as it may work other Napoleon fireplaces as well.