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- Description
- Additional information
- Key Features
- Specifications
- Catalogs and Manuals
- FAQ
- Shipping / Freight / Return Info
- Napoleon Gas Collection
Napoleon Oakville X4: a 40,000 BTU gas insert for a large fireplace
The Napoleon Oakville X4 is the biggest insert in the Oakville line, a direct vent gas insert for a large masonry or prefab wood burning fireplace. It needs an opening at least 34 1/4 inches wide, 24 5/8 inches tall and 17 3/4 inches deep. The dual burner split flow system runs the front and rear burners from 16,000 up to 40,000 BTU and fills the firebox with a triple flame. The heat circulating blower, the remote and eFIRE Bluetooth app control 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, and a 3 inch riser box. 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 X4 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 40,000 BTU’s with a Triple Flame
- President’s Limited Lifetime Warranty
- Dual burner split flow system, full modulation of front and rear burners from 16,000 to 40,000 BTU’s
- SIT Proflame II Electronic Ignition
- eFIRE enabled with app; 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: GDIX4N-1
| Model | Oakville™ X4 (GDIX4N-1) |
| Warranty* | President’s Limited Lifetime Warranty * |
| Fuel Type | Natural Gas (propane kit sold separately) |
| Max. Input | 40,000 BTU/hr (natural gas), 36,000 BTU/hr (propane) |
| Ignition | SIT Proflame II electronic |
| Controls | Remote and eFIRE Bluetooth app (included) |
| Viewing Area | 27.75 x 11.69 in (70.49 x 29.69 cm) |
| Width | 34.13 in (86.68 cm) |
| Height | 24.56 in (62.39 cm) |
| Depth | 18.75 in (47.63 cm) |
| Minimum Fireplace Opening | 34 1/4 in W x 24 5/8 in H x 17 3/4 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
Fuel Conversion Kit Instructions
Backerplate Installation Instructions
Faceplate Installation Instructions
FAQ
Will the Oakville X4 fit my fireplace?
It goes into a vented wood burning fireplace, masonry or prefab, with an opening at least 34 1/4 inches wide, 24 5/8 inches tall and 17 3/4 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 X4?
Only the decorative panels: MIRRO-FLAME reflective porcelain, Newport brick, or Westminster brick. Log kits, backerplates, faceplates and the riser box are optional.
What is eFIRE on the Oakville X4?
Napoleon’s Bluetooth app control. It comes included on the X4, so you can run on and off, flame height, blower speed and the ember bed from your phone, per Napoleon’s brochure. The remote is included too.
What venting does the Oakville X4 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 X4 on propane?
Yes, with conversion kit W175-0726 on the page, $95 in the 2026 price book. The manual rates it at up to 36,000 BTU on propane.
What warranty covers the Oakville X4?
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
- 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
- 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.
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.
ViewNapoleon Tall Linear Gas Fireplaces
Extra-tall glass for a bigger, more dramatic wall of flame.
Napoleon Linear Gas Fireplaces
Wide, contemporary ribbons of flame that fit perfectly in any room.
Napoleon Traditional Gas Fireplaces
Classic hearth proportions, deep fireboxes, and realistic log sets.
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.
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.
ViewNapoleon Gas Fireplace Inserts
Turn an existing wood burning fireplace into a gas fireplace.
Napoleon Gas Log Sets
Give your wood burning fireplace the look of a log fire, with a working chimney required.
Napoleon Outdoor Gas Fireplaces
Bring the same linear flame to the patio — built to live outside.
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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What Our Customers Say
D
A sauna turns your garden into a spa oasis. We debated it for a while, but after renovating our house, we pulled the trigger and bought a sauna from Norse Steam and Maya. She was always super responsive and helpful throughout the process. Don't kid yourself, getting a really nice sauna is not that easy. Sizing and heating need to be figured out, as does the building, but we have always had a helpful partner on our side. She never upsold us on anything we didn't need, and we got some nice freebies when the sauna was delivered. And now we can really enjoy every moment in our garden.
KF
I'm really happy with my sauna purchase. Maya gave above and beyond excellent customer service. She wasn't pushy and gave impressive followup after the delivery to make sure everything was just right.
DE
I enjoy my FD2 Sauna with Red Light, Infrared and radiant heat. Use it 5x a week and my post workout soreness is minimal and sleep great. Maya at Norse Steam was excellent to work with.
B
We purchased the 3-person sauna for our outdoor garden. We chose the cube sauna for the aesthetic and could not be happier.
I assembled by myself except for the 2 large panels (requires a few people). Instructions were good - took me two partial Saturdays to complete and a few hours to unpack and organize in advance of assembly. Had my elec. add a NEMA enclosure on the back for the controller and power for lights and a 2nd panel for the wireless control.
Customer service was excellent
MP
Awesome Sauna and Awesome Company and Experience purchasing it from Maya!
After much research I chose the Finnmark FD-2 and it has met and exceeded all my expectations! Easy to assemble and it functions great - just as advertised. I highly recommend it for home use!
EA
Recently purchased the Finnmark one person after much research. Extremely happy with it and the ordering process. Maya was very responsive and helpful during the process and keeping us updated while we waited for shipment. There were several places I could have ordered this, but i chose Norse Steam based on the communication and customer service which was fantastic. The shipment was also excellent. The setup was pretty seamless for two people - but the best part is the sauna experience 10/10
G
Maya is amazing - super helpful and responsive. Looked at many stores, these guys have the best prices and service. Highly recommend
GR
Norse Steam, and specifically Maya, were extremely helpful as I was making the decision for our Sauna. I was able to get all of the necessary details to make a decision as construction was happening in my backyard to make space for it.
We absolutely love the CL7G. It is extremely comfortable for 6 people (can fit more less comfortably). The Thermory Spruce and Aspen in the interior smells great. The lighting is lovely. We paired the CL7G with the Harvia Spirit 10.5kw.
RS
Had great experience shopping at Norse Steam for the new heater. They had very good deal, with rocks. Customer service was good, and responded very fast with my questions. Received the heater, and it looks good, and the quality seem to be great. Will install soon, and am very excited to start experiencing sauna the way it ment to be
O
positive purchase experience - Harvia Legend 150 SL woodstove
thanks Norse Steam for flawless transaction - I got instant replies on my questions, received competitive price on the wood stove and got it delivered within two weeks!
Can highly recommend Norse Steam for others.
JR
Smoking Hot Tub!
I got the Norse Steam SaunaLife wood-fired hot tub, the S4N model, and its been seriously great. It heats up quicker than I expected, usually around an hour and a half, and once its hot, it stays that way for a good long while. The wood-fired system is simple to use, and honestly kind of fun.
The tub itself feels solid and well put together. The thermo-spruce exterior looks beautiful in person, and the fiberglass interior is smooth, deep, and easy to clean. Its the kind of setup that just works without a bunch of fuss, which I really appreciate.
Also, the team at Norse Steam was genuinely great to work with. Super helpful, quick to respond, and made the process really easy from start to finish. It felt like they actually cared that I was happy with it. The tub has totally become a go-to way to unwind, and I wouldnt change a thing.
S
Maya was so knowledgeable and responsive
Maya was so knowledgeable and responsive. She helped me understand the product options and found a fantastic solution that fit our needs. Her follow through was very helpful and made us comfortable with our decision. We are extremely happy with the end result!
W
Great service
I recently purchased the Harvia Club sauna equipment, and I am thoroughly impressed with both the product and the customer service experience. The heaters robust performance and durable stainless steel construction make it ideal for larger sauna spaces, providing consistent heat and a relaxing environment. Its compatibility with advanced controls ensures a personalized sauna experience every time.
The customer service team was exceptional, prompt, knowledgeable, and helpful throughout the purchase process. They ensured smooth delivery and provided clear guidance on installation and operation. Overall, I highly recommend Harvia Club for anyone seeking premium-quality sauna equipment backed by excellent support!
BT
Great Sauna & Purchase Experience
Great experience purchasing Finnmark FD-2 from Norse Steam. Good communication and easy to assemble. Temperature increases quickly (30 minutes or less to 140) and maintains well. So far this has been a great purchase.
M
Great sauna and great customer service
We purchased the Finnmark SD-1 sauna. Maya was extremely helpful with the purchase. We had an issue with the sauna not reaching the maximum temperature, and Maya connected us with the appropriate technician that explained how to correct the issue. The sauna now heats to the maximum temperature (170 degrees) in less than an hour, and it is a great unit. We are very happy with it, and we would definitely purchase from NorseSteam if we needed any other items.
JK
Sauna Review
I recently purchased a sauna from Norse Steam, and I couldn't be more impressed with the entire experience. From start to finish, their customer service was exceptional, and Maya deserves special recognition for her outstanding support!
Maya was incredibly knowledgeable and patient, answering all my questions about the sauna features, installation process, and maintenance. She went above and beyond to ensure I selected the perfect model for my home. Even after the purchase, Maya followed up to make sure everything was running smoothly and that I was satisfied with my sauna.
The sauna itself is top-notch beautifully designed, durable, and easy to use. It's clear that Norse Steam takes pride in the quality of their products and their commitment to customer satisfaction.
If you're considering a sauna, I wholeheartedly recommend Norse Steam. With their excellent customer service and high-quality products, you're in great hands. Thank you, Maya, and the entire Norse Steam team for a fantastic experience!
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