Step 6: Insulate door

Insulating the door.
Photo: Kolin Smith
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Put on a pair of gloves and unroll the fiberglass insulation that comes with the door. Tear off pieces to fit into the channels at the two sides and the top of the unit.

Stuff the insulation into all three channels. Don't worry about keeping the fiberglass fluffy, as you would with wall insulation—it's mainly there to seal the door and keep smoke from seeping out, and to protect any finish on the door frame from the heat.
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    Tools List

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    • droplight
      Droplight
    • Phillips screwdriver
      Phillip's head driver
    • drill
      Drill/driver
    • hammer
      Hammer
    • gloves
      Gloves
    • socket wrench
      Socket wrench
    • needlenose pliers
      Pliers

    Shopping List

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    GLASS DOOR KIT

    Comes with everything you will need for the installation, including all brackets, screws, anchors, and insulation. [BR] Many doors come in standard sizes, and larger distributors keep popular sizes in stock. Otherwise, you will need to order the door, which can take up to eight weeks. [BR]Measure the size of your firebox opening, both horizontally and vertically. Make sure to measure in a couple of places and note the smallest measurement for each so the door will slide into the space. Also measure the width and height of your surround between any protruding parts of the mantel. A narrow surround may require a smaller door to accommodate the overlap at the firebox edge.