By Keith from Toldeo, OH on November 12, 2015
Does this Napoleon fireplace outside combustion air extension kit come with the insulation sleeve? Do you know what type of insulation I should use on the duct that came with my unit as it is uninsulated? Are both ends of this pipe rough cut or is one end finished so it fits tight on the flange that comes out of my Napoleon NZ600 fireplace?
By Will M. on November 16, 2015
Per the manufacturer, insulation is not included with the kit. Nonflammable ceramic fiber material with a flame resistant wrap is commonly used with the pre-insulated flex duct we offer. We offer kits like the 6 inch x 25-ft. HomeSaver UltraPro Chimney Liner Insulation Kit
that could be used for this application, but you would not need the clamps or mesh. The insulation is offered separately here.