

Napoleon Ducted Heat Management for the Altitude X 36 and 42 is a gravity vent system, with no fan, that lowers the temperature above your fireplace and sends the warm air back into the room through a grill. With it installed, the Altitude X allows reduced mantel clearances. Choose front or side discharge, and you get everything that layout needs: the manifold kit, the termination plate kit, the 8" ducted vent kit and the grill. It goes in while the fireplace is being framed, before the gas is installed. from $1,316.