Napoleon Oakville X3 Direct Vent Gas Fireplace Insert

$3,889.00

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✓ No Sales Tax (except WY)
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Napoleon Logo    Authorized Dealer – Full Warranty Included

Fuel Type *

Natural Gas (as shipped)
Propane conversion kit W175-0823 (+$105)

Decorative Panels *

Napoleon Oakville X3 Direct Vent Gas Fireplace Insert - GDIX3N 1 24 MIRRO FLAME Porcelain Reflective Radiant sq
PRPI3 MIRRO-FLAME reflective black porcelain panels (+$369)
Napoleon Oakville X3 Direct Vent Gas Fireplace Insert - GDIX3N 1 26 Newport Standard sq
DBPI3NS Newport standard brick panels (+$369)
Napoleon Oakville X3 Direct Vent Gas Fireplace Insert - GDIX3N 1 25 Westminster Standard sq
DBPI3WS Westminster standard brick panels (+$369)

Log Kits

Napoleon Oakville X3 Direct Vent Gas Fireplace Insert - birch log kit option
BLKIX3 standard birch log kit with charcoal (+$259)
Napoleon Oakville X3 Direct Vent Gas Fireplace Insert - driftwood log set option
DLKIX3 standard driftwood log set (+$429)

Backerplate

Napoleon Oakville X3 Direct Vent Gas Fireplace Insert - GDIX3N 1 29 Small 3 Sided Black sq
SBK3B2540 small backerplate, black, 6 in (+$429)
Napoleon Oakville X3 Direct Vent Gas Fireplace Insert - GDIX3N 1 30 Medium 3 Sided Black sq
MBK3B2846 medium 3-sided backerplate, black, 8.5 in on the X3 (+$449)
Napoleon Oakville X3 Direct Vent Gas Fireplace Insert - GDIX3N 1 31 Large 3 Sided Black sq
LBK3B3048 large 3-sided backerplate, black, 9.5 in on the X3 (+$479)
Napoleon Oakville X3 Direct Vent Gas Fireplace Insert - GDIX3N 1 32 Large 4 Sided Black sq
BK4B3142 4-sided backerplate, black, 6.5 in on the X3 (+$449)

Faceplate

Napoleon insert add-on - OAK FACEPLATE LBK3F3B3
LBK3F3B3 large 3-sided faceplate, 5 in, black, for a 3-sided backerplate (+$419)
Napoleon insert add-on - OAK FACEPLATE LCH3F3B3
LCH3F3B3 large 3-sided faceplate, 5 in, charcoal, for a 3-sided backerplate (+$429)
Napoleon insert add-on - OAK FACEPLATE LBK4F4B3
LBK4F4B3 large 4-sided faceplate, 5 in, black, for a 4-sided backerplate (+$449)
Napoleon insert add-on - OAK FACEPLATE LCH4F4B3
LCH4F4B3 large 4-sided faceplate, 5 in, charcoal, for a 4-sided backerplate (+$479)
Napoleon insert add-on - OAK FACEPLATE SBK3F3B3
SBK3F3B3 small 3-sided faceplate, 2.5 in, black, for a 3-sided backerplate (+$369)
Napoleon insert add-on - OAK FACEPLATE SCH3F3B3
SCH3F3B3 small 3-sided faceplate, 2.5 in, charcoal, for a 3-sided backerplate (+$369)
Napoleon insert add-on - OAK FACEPLATE SBK4F3B3
SBK4F3B3 small 4-sided faceplate, 2.5 in, black, for a 3-sided backerplate (+$369)
Napoleon insert add-on - OAK FACEPLATE SBK4F3B3
SBK4F4B3 small 4-sided faceplate, 2.5 in, black, for a 4-sided backerplate (+$369)
Napoleon insert add-on - OAK FACEPLATE SCH4F3B3
SCH4F3B3 small 4-sided faceplate, 2.5 in, charcoal, for a 3-sided backerplate (+$369)
Napoleon insert add-on - OAK FACEPLATE SCH4F3B3
SCH4F4B3 small 4-sided faceplate, 2.5 in, charcoal, for a 4-sided backerplate (+$369)
Napoleon insert add-on - OAK FACEPLATE SABK4F3B3
SABK4F3B3 small arched 4-sided faceplate, 2.5 in, black, for a 3-sided backerplate (+$369)
Napoleon insert add-on - OAK FACEPLATE SACH4F3B3
SACH4F3B3 small arched 4-sided faceplate, 2.5 in, charcoal, for a 3-sided backerplate (+$369)

Accessories

GI-RB3 riser box, 3 in H x 48 in W (+$249)
CISI3BK 7 in black decorative cast iron surround (+$1,469)

Chimney Liner Kit

GDI-320KT vent kit 20 ft: two 3 in double ply aluminum liners, intake and exhaust (+$169)
GDI-325KT vent kit 25 ft: two 3 in double ply aluminum liners, intake and exhaust (+$199)
GDI-335KT vent kit 35 ft: two 3 in double ply aluminum liners, intake and exhaust (+$269)
Product price: $3,889.00
Total options:
Order total:

Napoleon Oakville X3: a dual burner gas insert with the blower and remote included

The Napoleon Oakville X3 is a direct vent gas insert made to replace an old, inefficient masonry or prefab wood burning fireplace. It needs an opening at least 29 inches wide, 21 inches tall and 17 1/8 inches deep. A dual burner fills the firebox with a triple flame pattern, and you can run the front and rear burners on their own. It puts out up to 30,000 BTU, and the heat circulating blower and the Proflame II remote come included. A split oak log set is standard, and Napoleon’s NIGHT LIGHT glows even when the fire is off.

One choice is required on the page: the decorative panels, in MIRRO-FLAME reflective porcelain or Newport or Westminster brick. Optional extras: birch or driftwood log sets, backerplates and faceplates in black or charcoal, a 3 inch riser box, and a 7 inch black cast iron surround. Order it for natural gas, or add the propane conversion kit. It vents through two 3 inch liners run up the existing chimney, one for fresh air and one for exhaust, and the matching Napoleon liner kits are on the page. Napoleon backs it with its President’s Limited Lifetime Warranty. The Napoleon Oakville X3 ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.

Brand

Napoleon

Product Type

Fireplace

Fireplace Type

Direct Vent, Insert

Fireplace Location

Indoor

Fuel Type

Natural Gas

Key Features

  • Up to 30,000 BTU’s
  • President’s Limited Lifetime Warranty
  • Dual burner system, front and rear burners run on their own
  • High performance “H” style burner with a full firebox flame display
  • SIT Proflame II Electronic Ignition
  • Proflame II Remote Control included
  • Superior heat circulating blower included
  • Split oak log set included
  • Exclusive NIGHT LIGHT™, on even when the fireplace is off
  • Premium clean face safety barrier
  • Heat Radiating Ceramic Glass
  • Directional baffles increase air flow for blower efficiency
  • Flame/Heat Adjustment
  • Back-Up Control Included
  • Flex connector included
  • Co-linear venting, two 3 in liners

Specifications

SKU: GDIX3N-1

Model Oakville™ X3 (GDIX3N-1)
Warranty* President’s Limited Lifetime Warranty *
Fuel Type Natural Gas (propane kit sold separately)
Max. Input 30,000 BTU/hr
Ignition SIT Proflame II electronic
Viewing Area 22.63 x 15 in (57.48 x 38.10 cm)
Width 28.63 in (72.71 cm)
Height 20.94 in (53.18 cm)
Depth 18.31 in (46.51 cm)
Minimum Fireplace Opening 29 in W x 21 in H x 17 1/8 in D
Venting Co-linear: two 3 in liners (intake and exhaust), 10 to 45 ft
Minimum Chimney Flue 6 in round
Heat Management Heat circulating blower (included)
  • * Please refer to Warranty page for full information.
  • Dimensions are the maker’s; confirm the fireplace opening, clearances and venting against the installation manual.

Catalogs and Manuals

Downloads

Brochure

Product Manual

Installation Manual

Specifications Sheet

Fuel Conversion Kit Instructions

Backerplate Installation Instructions

Faceplate Installation Instructions

Riser Kit Installation Instructions

Cast Iron Surround Installation Instructions

Register your Fireplace

FAQ

Will the Oakville X3 fit my fireplace?

It goes into a vented wood burning fireplace, masonry or prefab, with an opening at least 29 inches wide, 21 inches tall and 17 1/8 inches deep and a chimney flue at least 6 inches round, per Napoleon’s installation manual. Measure your opening before you order.

What do I have to pick when I order the Oakville X3?

Only the decorative panels: MIRRO-FLAME reflective porcelain, Newport brick, or Westminster brick. Log kits, backerplates, faceplates, the riser box and the cast iron surround are optional.

Is the blower included with the Oakville X3?

Yes. Napoleon’s product page and brochure list the heat circulating blower as included on the X3, together with the Proflame II remote and a split oak log set.

Can I run the two burners separately?

Yes. The X3’s dual burner lets you run the front and rear burners together or one at a time, per Napoleon.

What venting does the Oakville X3 need?

Two 3 inch liners run up the existing chimney, one brings in fresh air and one carries the exhaust out. Napoleon’s installation manual allows 10 to 45 feet of liner. The Napoleon kits on the page come in 20, 25 and 35 foot lengths, each with both liners.

Can I run the Oakville X3 on propane?

Yes, with conversion kit W175-0823 on the page, $105 in the 2026 price book.

What warranty covers the Oakville X3?

Napoleon’s President’s Limited Lifetime Warranty, sold in full through our authorized Napoleon dealership.

Shipping / Freight / Return Info

Same-Day / 24 hour shipping

Same-Day/24 hour shipping - If we have the product in stock, we can ship same day if ordered before 12pm Monday - Friday (CST).

Freight Claims Policy

Please follow these very important steps when it comes to Freight Items that are damaged or missing
  • Open and inspect the order while the delivery driver is present. If delivery driver does not provide sufficient time to do so, please notate the delivery receipt.
  • By signing the delivery receipt without noting any damage or missing items, you confirm that your order arrived complete and in excellent condition.
  • Record any damage or missing pieces directly on the delivery receipt.
  • Do not discard damaged item(s) or any original packaging. For severe damage, write “Refused due to damage” on the delivery receipt and contact us immediately.
  • Report any damage within two business days, including delivery details and photos showing the issue
  • Damaged item(s) must be returned within 30 days. Failure to return them will result in a charge to the original payment method.

Return Merchandise Authorization Policy

Please follow these very important steps when Returning Items. Contact our team.
  • Submit your return request within 30 days of delivery.
  • You will receive an email within 1-2 business days confirming whether your return request has been approved or denied.
  • Please also note that a 20% restocking fee may apply to approved returns
  • If approved, you will receive an itemized Return Authorization, return shipping labels (if requested), and detailed instructions within 1–2 business days
  • From the date this email is received, you will have 14 days to return the product.
  • Once our distributor receives and inspects the returned item(s), your refund will be issued within 1–2 weeks
  • Items returned outside of this process or time frame are not eligible for a refund.

Napoleon Gas Collection

Napoleon Gas Fireplaces

Get cozy with stylish gas fireplace solutions from Napoleon, designed to elevate the look and feel of any room in your home. Whether you’re looking for clean, contemporary linear designs, traditional styles that bring the campfire feel indoors, see-through models shared between two rooms, inserts for an existing wood fireplace, vented gas logs for a wood fireplace with a working chimney, or an outdoor fireplace for the patio, there’s a Napoleon gas fireplace to fit your needs, budget, and aesthetic. Browse the lineup by style below.

Napoleon Luxury Linear Gas Fireplaces

Napoleon’s flagship linear series — premium features in single-sided, see-through and three-sided Tall Bay formats.

Napoleon Luxuria linear gas fireplace in a modern lounge

Luxuria™ Series

Available Models: 50, 62 & 74 · See-Through: 50, 62 & 74 · Tall Bay (three-sided): 50 & 62

The Luxuria™ Series of linear gas fireplaces features a wealth of premium features like Napoleon’s patent-pending heat management and the safe-to-touch Glass Guard System, allowing it to be truly versatile for any home.

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Napoleon Tall Linear Gas Fireplaces

Extra-tall glass for a bigger, more dramatic wall of flame.

Napoleon Tall Linear Vector gas fireplace in a living room

Tall Linear Vector™ Series

Available Models: 50, 62 & 74 · See-Through: 50, 62 & 74

The Tall Linear Vector™ Series features all of the modern design you love with an even greater visual impact, more efficient use of fuel, and superior heat distribution.

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Napoleon Tall Linear Vector with Luminous Logs gas fireplace

Tall Linear Vector™ with Luminous Logs

Available Models: 50, 62 & 74 · See-Through: 50, 62 & 74

The Tall Linear Vector™ with Luminous Logs rivals traditional fire with innovative technology, lower gas use, and year-round enjoyment with adjustable settings.

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Napoleon Linear Gas Fireplaces

Wide, contemporary ribbons of flame that fit perfectly in any room.

Napoleon Vector linear gas fireplace in a contemporary bedroom below a television

Vector™ Series

Available Models: 38, 50, 62 & 74 · See-Through: 38, 50, 62 & 74

The variety of sizes in the Vector™ Series of linear gas fireplaces allows them to fit perfectly in any room.

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Napoleon Ascent Linear gas fireplace in a living room

Ascent™ Linear Series

Available Models: 36, 42, 46 & 56

The Ascent™ Linear Series adds warmth to any room and is easily customizable with optional media enhancement kits.

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Napoleon Ascent Linear Premium gas fireplace lifestyle

Ascent™ Linear Premium Series

Available Models: 42, 46 & 56

The Ascent™ Linear Premium Series is the ideal finishing touch for your home — add luxury to any room with your choice of hand-painted logs or glass crystals.

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Napoleon Traditional Gas Fireplaces

Classic hearth proportions, deep fireboxes, and realistic log sets.

Napoleon Elevation X traditional gas fireplace with driftwood logs

Elevation™ X Series

Available Models: 36 & 42

The Elevation™ X is a premium, traditional style gas fireplace, featuring a deep firebox and an impressive display of flames.

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Napoleon Altitude X traditional gas fireplace with driftwood logs and flames

Altitude™ X Series

Available Models: 36 & 42

The Altitude™ X is a traditional style gas fireplace that can be customized with a multitude of features and options.

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Napoleon Ascent X traditional gas fireplace lifestyle

Ascent™ X Series

Available Models: 36 & 42

The Ascent™ X Series gas fireplaces transform an everyday room into a gathering space worthy of company and life’s most enjoyable moments.

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Napoleon Ascent gas fireplace in a living room with mantel

Ascent™ Series

Available Models: 30, 36, 42 & 46

Napoleon’s Ascent™ Series gas fireplaces feature maximum viewing area and ease of installation.

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Napoleon High Definition 81 gas fireplace with logs in a living room

High Definition Series

Available Models: 81

The simple yet sophisticated design of the Napoleon High Definition Series gas fireplaces provides every comfort a homeowner needs.

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Napoleon See-Through & Multi-View Gas Fireplaces

One flame shared between two spaces — or wrapped in glass on three sides. Luxuria, Vector, and Tall Linear Vector see-through models, and the three-sided Tall Bay Luxuria, are linked in their series cards above.

Napoleon Ascent Multi-View peninsula gas fireplace in a white bedroom

Ascent™ Multi-View Series

Available Models: Peninsula — Log Set, Peninsula — Glass Ember Bed, See-Through — Log Set & See-Through — Glass Ember Bed

The Napoleon Ascent™ Multi-View gas fireplace is available as a See-Through or a three-sided Peninsula to elevate the style in your home.

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Napoleon Gas Fireplace Inserts

Turn an existing wood burning fireplace into a gas fireplace.

Napoleon Rosedale gas fireplace insert with birch logs in a bright living room

Rosedale™ Series

Available Models: 2 & 3

The Rosedale™ Series fits into an existing wood burning fireplace, with birch or oak log sets and clean, contemporary faceplates.

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Napoleon Oakville gas fireplace insert in a stone fireplace in a living room

Oakville™ Series

Available Models: X3 & X4

The Oakville™ Series transforms an old, inefficient masonry or prefab wood burning fireplace with a dual burner triple flame and Napoleon’s NIGHT LIGHT™ glowing even when the fire is off.

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Napoleon Gas Log Sets

Give your wood burning fireplace the look of a log fire, with a working chimney required.

Napoleon Fiberglow vented gas log set burning in a stone fireplace in a living room

Fiberglow™ Series

Available Models: 18 & 24

The Fiberglow™ Series pairs five ceramic fiber logs with a cast iron grate and glowing embers for the look of a log fire in your wood burning fireplace. A working chimney is required, and the included damper stop holds the damper partly open.

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Napoleon Outdoor Gas Fireplaces

Bring the same linear flame to the patio — built to live outside.

Napoleon Galaxy outdoor linear gas fireplace in a backyard

Galaxy™ Series

Available Models: 50, 62 & 74

The Galaxy™ Series brings Napoleon’s contemporary linear flame outdoors — a modern outdoor gas fireplace with optional LED accent lighting and glass ember media.

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Napoleon Riverside outdoor gas fireplace in an outdoor living room

Riverside™ Series

Available Models: 36 & 42

The Riverside™ Series is a traditional-style outdoor gas fireplace with realistic log sets — the campfire feel for your outdoor living room.

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Napoleon Gas Fireplace Technology

Glass Guard System

The innovative triple-paned Glass Guard system keeps the exterior glass warm but safe to touch — suitable for homes with kids or pets, with no metal screen blocking the flame view.

Heat Management System

Control the flow of heat — direct warmth where it’s needed most, or divert it away from sensitive items like a TV mounted above the fireplace.

eFIRE App Control

Adjust flame height, blower speed, and LED accent lighting from your smartphone, with timers that can automatically turn the fireplace off.

Night Light™

A soft, ambient glow even when the flames are off — enjoy the cozy look of a fireplace year-round without the added heat.

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