Skip to content

Napoleon Oakville GDIX4 Gas Fireplace Insert | GDIX4N |

Original price $3,169.00 - Original price $3,454.00
Original price
$3,169.00 - $3,454.00
Current price $3,169.00

New Item--Accessories and Options being added soon--Please call for more information!

Free Shipping Tax Free Authorized Napoleon Dealer

The largest in the Oakville Series the impressive Oakville X4 Gas Fireplace Insert has an exclusive dual burner split flow system that results in a firebox filled with a stunning triple flame pattern and allows the option of independently operating the front and rear burners from 16,000 to 40,000 BTU's. A superior heat circulating blower comes included with this model and when paired with Oakville's airflow improvement directional baffles generate maximum blower efficiency. A stunning triple flame and massive 518 sq. in. viewing area makes this fireplace insert a perfect choice for larger rooms where a passion for luxury is evident.

Napoleon Oakville GDIX4 Brochure


  • See all available accessories here
  • For use within a masonry fireplace
  • Full function Proflame II remote control included
  • Enabled with bluetooth control via the eFIRE app
  • Variable speed blower included
  • Up to 40,000 BTU's
  • Stunning Triple Flame
  • Clean Face Design And Flush Finish Accessories
  • Exclusive dual burner split flow system allows for full modulation of both front and rear burners from 16,000 up to 40,000 BTU's
  • Full view design with massive 518 sq. in. viewing area
  • SIT Proflame II Electronic Ignition
  • Exclusive NIGHT LIGHT included
  • Premium clean face safety barrier maximizes viewing area
  • Directional baffles increase air flow for maximum blower efficiency
  • Clean contemporary faceplates and backerplates available
  • A wide range of media kits, brick panels and porcelain panels available
  • Optional Faceplates 2.5" And 5" Widths In 3-Sided Or 4-Sided Configurations
    Napoleon Oakville GDIX4 Gas Fireplace Insert | GDIX4N | Technical Details


    Product Details

    Fuel Type: Gas
    Vent Type: Direct Vent
    Vent Size: 3x3
    Ignition Type: Electronic
    Installation Type: Insert
    Style: Traditional
    Vent Inner Diameter: 3 Inches
    Vent Outer Diameter: 3 Inches
    Weight: 148 lbs.
    Model: Natural Gas (NG) Propane (LP)
    Max. (BTU/HR): 40,000 BTU's 36,000 BTU's
    Min. (BTU/HR): 3,200 BTU's 33,200 BTU's
    Napoleon Oakville GDIX4 Gas Fireplace Insert | GDIX4N | Dimensions


    Actual Dimensions

    Height Width Depth
    249/16" 341/8" 173/4"

    Technical Drawings

    For more detail please see the Installation Manual

    GDIX4N Technical Drawing 1
    GDIX4N Technical Drawing 2



    Why am I required to purchase a decorative panel with the fireplace at additional cost?

    The fireplace is designed for use with this item. Without this item, your fireplace would not function correctly and would look incomplete. The item is an additional cost to allow you to choose which look you like best.

    How will the fireplace be delivered? Will the delivery driver bring it into my house?

    All fireplaces are delivered via freight (tractor trailer truck) to the specified street address you provide us, we do provide free lift gate service with all freight deliveries. The delivery driver is only responsible for unloading the items from the truck, not to move them anywhere. For more information on the delivery process visit our FAQ page.

    How is this fireplace vented?

    The Oakville X4 gas fireplace insert uses a 3" exhaust and a 3" intake. Since an insert is installed in a masonry fireplace, the 3" aluminum liners are typically dropped down the chimney. We recommend Napoleon's insert venting components, GDI-223 termination with a liner kit, GDI-2320KT, GDI-2325KT or GDI-2335KT, depending on the height of the chimney. Of course, if you need any assistance in determining which type of venting is best for your situation, give us a call (844)635-5499.

    What's the difference between an insert and a fireplace?

    In the hearth industry, we refer to an insert as a fireplace that is being installed within an existing masonry fireplace. These units are designed to get hot, therefore they wouldn't be safe installed in a wall opening. A direct vent fireplace, or zero clearance fireplace has additional insulation and heat protection to allow it to be installed close to combustible materials such as wood, they are generally larger in size that inserts.

    How do I know if my existing fireplace is big enough?

    The minimum firebox opening needed is shown in the images above (24-3/4"H x 34-5/16"W x 18-1/4"D). When choosing your surround size we generally aim for at least a half inch of overlap on the sides and top.

    Where are the accessories for this fireplace?

    You can find all of the available options on the accessories page.

    Have a different question? Give us a call, email or chat.

    Questions & Answers

    Ask a Question
    • What is the width of the back of the unit?

      The very rear of the fireplace is 25-3/8" wide.  Thanks for your question!

    • my gas fireplace is 18 wide by 11 depth - do you have that size ? thank you lynn

      Unfortunately, we don't have any gas inserts that would fit into an opening that small.  Thanks for your question!

    • Can I get a backer plate to fill a 44 inch wide by 28 1/2 inch opening?

      Yes.  The medium three sided backer plate is 44" x 28-1/2", but to have a little more overlap, you'd probably want the large three sided backer plate which is 47" x 30".  Thanks for your question!


      Unfortunately, that's one of the largest inserts we carry along with the XIR4 and Ruby 35, which are both just about the same dimensions.  We do not offer custom work at this time.  For an insert with a backer plate that would cover your opening, you could use Empire's Rushmore 35 DVCT35CBN which has a backer plate that's 52" W x 36" H.  We don't currently have this model listed on the website, but it is available to order.  Thanks for your question!

    Warning CA residents-Prop 65