Napoleon
Napoleon Oakville X3 Direct Vent Insert, Natural Gas | GDIX3N-1
Napoleon Oakville X3 Direct Vent Insert, Natural Gas | GDIX3N-1
A compact direct vent natural gas insert for a smaller existing wood-burning fireplace. The Oakville X3 GDIX3N-1 slides into a vented, non-combustible fireplace, factory-built or masonry, and shows the flame through a 15 inch by 22 11/16 inch glass front. It draws its combustion air from outside and sends the exhaust back out through liners in your chimney, so the flame does not use your room air.
What you get
| Model | Napoleon GDIX3N-1, Oakville X3, direct vent gas insert, natural gas |
|---|---|
| Fuel | Natural gas |
| Maximum input | 30,000 BTU/hr, as printed on Napoleon’s specification sheet. This is a gas input rating, not a heat rating. |
| Overall size | 28 5/8″ W × 20 15/16″ H × 14 3/8″ D |
| Viewing area | 15″ × 22 11/16″, as printed on Napoleon’s specification sheet |
| Minimum opening | 29″ W × 21 1/2″ H × 14 3/8″ D in the existing fireplace. Add 4″ to the depth for the optional blower. |
| Existing fireplace | Must be recessed into a vented non-combustible wood-burning fireplace, factory-built or masonry, with a flue of at least 6″ round |
| Venting | Direct vent. The 3″ liner kits below connect the insert to a terminal at the top of your chimney. |
| Controls | Napoleon’s owner’s manual describes a remote control with an LCD display. It sets six flame levels, shows the room temperature, runs the optional blower in six speeds and controls the Night Light. It also has a child lock. |
| Battery back-up | Napoleon’s manual says the receiver takes four AA batteries, and the transmitter takes three AAA batteries. With the receiver batteries in, the remote can still run the flame during a power failure. |
| Mantel | Napoleon requires at least 12″ from the top of the appliance to the bottom of a combustible mantel that projects 3″ or less. The chart on the specification sheet covers deeper mantels. |
| Panels | Sold separately |
| Front options | Face plates and backer plates in several sizes and finishes, matched to your opening and sold separately |
| Warranty | Napoleon Gas Appliance President’s Lifetime Limited Warranty. Terms are in the owner’s manual. |
Add to your order
The Oakville X3 needs a chimney liner kit and panels, so start with those. Everything below is listed for the Oakville X3 or Oakville 3 in Napoleon’s documents. Tick what you want and add it to your cart with the insert in one step.
Questions people ask us
What is a gas insert, and will the X3 fit my fireplace?
A gas insert is a sealed gas appliance that slides into an existing wood-burning fireplace, so you keep the fireplace opening and swap the wood fire for a gas flame. Napoleon says the X3 goes only into a vented, non-combustible wood-burning fireplace, factory-built or masonry. The opening must be at least 29″ wide, 21 1/2″ high and 14 3/8″ deep, and the flue at least 6″ round. Add 4″ to the depth if you want the optional blower.
Send us your opening size and a photo and we will confirm the fit before you order.
How is it vented?
It is a direct vent insert, so it is sealed from your room. Two 3″ flexible aluminum liners run up the chimney, one bringing combustion air down and one carrying exhaust out, and they connect to an air terminal at the top. Choose a liner kit in the add-ons below based on how far it is from the insert to the chimney cap. If you are unsure of the length, ask us before you order.
What do I need to buy with the insert?
You need a liner kit for the chimney and, for most chimneys, a terminal at the top. Napoleon sells the panels for the firebox and the face plate and backer plate that finish the opening separately. Choose the panels and liner kit in the add-ons below and send us your opening size for the plates.
Is it a heater?
The 30,000 BTU/hr figure on Napoleon’s specification sheet is the most gas the burner can use, not a heat output. We do not quote a heating output for this model. Choose this insert for the flame.
How does the remote work?
Napoleon’s owner’s manual describes a remote with six flame levels, a room temperature display in °F or °C, blower speed control, Night Light control and a child lock. Napoleon says the remote is the master control and can always turn the insert off. With four AA batteries in the receiver, the remote can still run the flame in a power failure, though the blower and Night Light will not run.
Can I add a blower?
Napoleon offers an optional blower for the X3 and lists an extra 4″ of depth for it on the specification sheet. Its installation instructions are in the documents below. Ask us about the blower for the X3 and we will confirm availability.
Can I put a mantel above it?
Yes, with a minimum height. Napoleon requires at least 12″ from the top of the appliance to the bottom of a combustible mantel that projects 3″ or less. Deeper mantels need more room, and Napoleon’s chart on the specification sheet gives the height for each depth.
Can I mount a TV above it?
Napoleon warns that the area above the opening, including the safety barrier and the wall surface, gets very hot. Planning a TV above the Oakville X3? Send us your plan before you place anything above it.
What are my options for the firebox?
Napoleon lists MIRRO-FLAME™ reflective porcelain panels and three brick panel finishes, Old Town Red, Westminster and Newport, plus driftwood and birch log kits for the X3. Pick what you want in the add-ons below and it goes into your cart with the insert.
Goes with this
Manuals and warranty
Napoleon’s terms cover the first 10 years at no charge for warranted parts, and from year 10 to life Napoleon supplies replacement parts at 50% of the current retail price. Electrical parts such as remote controls, gas valves, ignitors and wiring are covered with free replacement parts and labor during the first year. After the first year, Napoleon may choose to refund the wholesale price of a defective part, and installation and labor are not covered. The insert must be installed by a licensed professional in line with Napoleon’s instructions, and parts from other makers void the warranty. Registering is not required to make a claim, but keep your proof of purchase, model and serial number. Read the warranty section of the owner’s manual for the full terms.
Read the warranty terms · Our warranty library · Register your fireplaceEvery document is kept on our site, so the link works when you need it. More are in our Napoleon manuals and documents.
A note on the photos. Napoleon's photography often shows optional media and trim, and its flame colors are shown by the lighting. What ships with the fireplace is listed in the What you get table, and anything else is sold separately.
Ask us about your install