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The Napoleon Oakville X4 is a 35-inch direct vent natural gas fireplace insert that drops into an existing fireplace opening and vents through a liner to the outside. It pairs a wide ceramic-glass viewing area with a split oak log set, a modulating burner, a built-in blower, and electronic ignition. Control comes from the included remote or the eFIRE app, so flame height and blower speed can be set from a phone. It suits homeowners replacing an open wood fireplace who want controllable, sealed-combustion heat without a full remodel. Against basic millivolt inserts it adds app control and a factory blower; against larger linear inserts it gives up firebox width.
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The Napoleon Oakville X4 is a 35-inch direct vent natural gas fireplace insert in black. It has a large viewing area with heat-radiating ceramic glass. A high-performance burner gives adjustable heat and flames.
It lights with electronic ignition. You can control it with the eFIRE mobile app or the included remote. It comes with a flex connector and a split oak log set, and it carries a limited lifetime warranty.
