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Easy-open Front Glass

Napoleon Astound Built-In Electric Fireplace

Regular priceFrom $2,879.00

The deep one, for a wall you are building anyway. Recessed only, in four widths up to 96 inches, with a flip-down front glass that lets you change the logs and media by hand.

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Free delivery to contiguous U.S. + free 30-day returns. Est. arrival: Oct 2–12

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Napoleon NEFB50AB Video

Description

A Deep Recessed Firebox in Four Widths Up to 96 Inches

The Napoleon Astound Built-In is a recessed electric fireplace made in four widths: 50, 62, 74 and 96 inches. It is a genuinely deep firebox, which is what sets it apart from the slim linear panels most built-in electric fireplaces have become, and the front glass is hinged so you can reach the ember bed by hand. It runs on a standard 120 volt circuit and can be hardwired to 240 volts for double the heat.

The Front Glass Flips Down for Media Changes

Most built-in electric fireplaces seal the glass in behind a trim kit, so changing the logs means dismantling the face of the unit. The Astound's glass flips down instead. You reach in, swap what is in the bed, and close it.

It arrives with a Beach Fire log set and the Woodland media kit. Napoleon also makes birch logs, clear glass beads, mineral rock and black crystal media that drop into the same bed, and the flip-down glass is what makes seasonal decor a five minute job rather than a project.

It Has to Be Framed In, and It Cannot Be Wall Hung

Napoleon Authorized Dealer

This is the constraint worth knowing before anything else. Napoleon is explicit that the appliance must be fully recessed into an enclosure and cannot be hung on a wall. There is no surface-mount option and no shallow install, so the wall either gets framed for it or this is not the right fireplace.

What you do get to choose is the finish. A frameless finishing flange gives you the flush, trimless look, and a one-piece adjustable trim handles varying finishing material thicknesses if you would rather see a frame. Both are in the box, so the decision can wait until the drywall is up.

Best for a Wall You Are Already Building

New construction, a renovation that is already open, or a purpose-built media wall. If you are framing anyway, the depth costs you nothing and buys a firebox with real presence, especially at 74 and 96 inches where a slim panel starts to look thin for the wall it is on.

It is a poor fit for a finished wall you would rather not open, and for anyone who wants flame visible from more than one side. It is single-sided in every installation. Our Astound FlexMount covers both of those cases at a shallower depth.

Controls Run From the App, a Remote, or Your Voice

The premium remote is included and handles everything day to day. The Napoleon Home App adds scheduling and the full color range over WiFi, and Alexa or Google Home will take voice commands. An optional wall-mounted controller is available if you want a fixed switch plate instead.

The thermostat holds anywhere from 64 to 82 degrees Fahrenheit across eleven settings. ECO mode runs the heater at half output when you want the look more than the warmth, and BOOST runs it at maximum with the blower sped up. The flame runs independently of the heater, so the fire works in July.

Settle the Voltage Before the Wall Closes

The Astound will run plugged into a dedicated 15 amp, 120 volt circuit, and that is how most of them are installed. Hardwiring it to 240 volts doubles the output. It is the same fireplace and the same flame either way, so this is purely a heat decision, but it is one to make early: moving from 120 to 240 volts afterwards means opening the wall back up.

Two other things to hand your installer. Clearance to combustibles is zero at the bottom, sides and back, and 3 9/16 inches from the top of the appliance to a mantel. And if a TV is going above it, give it that clearance and check your TV maker's own operating temperature limits, because heat vents out the front but a closed alcove still holds it.

Optional Accessories: Birch Logs, Glass Beads, Mineral Rocks, Black Crystals, and Wall-Mounted Remote

Features

  • Extra-large viewing area – Expansive glass display enhances flame visibility and room ambiance.
  • Quick-access media design – Flip-down glass panel allows easy replacement of logs or decorative media.
  • Smart home compatibility – Control the fireplace using WiFi, Alexa, Google Home, or the Napoleon mobile app.
  • Adjustable lighting colors – Choose from 13 ember bed and top light color options for personalized ambiance.
  • Multiple flame speed settings – Five adjustable flame speeds allow customization of the visual effect.
  • Precision temperature control – Eleven heat settings help maintain consistent indoor comfort.
  • Flexible heating modes – ECO Mode maintains gentle warmth while Boost Mode increases heating performance.

Required Amount for Optional Glass Beads:

  • 50" Wide: 3 bags
  • 62" Wide: 5 bags
  • 74" Wide: 6 bags
  • 96" Wide: 8 bags

Required Kits for Birch Logs/Mineral Rocks:

  • 50" Wide: Small Size
  • 62" Wide: Medium Size
  • 74" Wide: Large Size
  • 96" Wide: Extra Large Size

Required Kits for Black Crystals:

  • 50" Wide: 3 bags of small crystals (600 g), 2 bags of large crystals (8 pcs)
  • 62" Wide: 2 bags of small crystals (600 g), 1 bag of small crystals (800 g), and 2 bags of large crystals (10 pcs)
  • 74" Wide: 3 bags of small crystals (800 g), 3 bags of large crystals (8 pcs)
  • 96" Wide: 5 bags of small crystals (600 g), 3 bags of large crystals (10 pcs)

Specifications & Manuals

  • Fuel Type
    Electric
  • Venting Type
    Ventless
  • Installation
    Indoor, Built-in
  • Viewing Configuration
    Single-Sided
  • Style
    Linear
  • Aesthetic
    Modern
  • Width
    50 1/4"
  • Height
    25 3/4"
  • Depth
    12 5/16"
  • Weight
    132 lbs
  • BTU Output
    5,000 - 10,000 (when hardwired to 240 V)
  • Voltage
    120-240V
  • Wattage
    1,500 W (120 V) / 3,000 W (240 V)
  • Circuit Requirement
    Plug-In, Hardwired, Dedicated 120V 15A Circuit
  • Material
    Glass, Steel
  • Color
    Black
  • Certifications
    CSA Certified, UL Listed
  • Warranty
    2 Years
  • Manuals

What's In The Box

  • Electric Fireplace - 1 pc.
  • Trim Kit - 1 set
  • Logs - 1 set
  • Hardware Kit - 1 set
  • Remote Control - 1 pc.
  • Suction Cup - 1 pc.
  • User's Manual - 1 pc.

Napoleon Astound Built-In Electric Fireplace FAQ's

Can you change the logs and media in the Napoleon Astound?

Yes, and it is the reason the front glass is hinged. The glass flips down so you can reach the ember bed without dismantling the face of the unit or pulling off a trim kit. It ships with a Beach Fire log set and the Woodland media kit. Napoleon also makes birch logs, clear glass beads, mineral rock and black crystal media that drop into the same bed, and the same access makes swapping in seasonal decor a five minute job.

Does the Napoleon Astound Built-In need venting or a gas line?

No. It is fully electric, so there is no flue, no chimney, no gas line and no combustion. That is most of why it can go into an interior wall, a media wall or a basement where a vented appliance would need a chase built for it. What it does need is its own dedicated circuit, which is the part that gets missed. See the electrical question below.

How is the Napoleon Astound Built-In installed?

It is recessed into a framed opening, and that is the only option. Napoleon states that the appliance must be installed fully recessed into an enclosure and cannot be hung on a wall. Minimum framing is 26 1/4 inches high by 13 3/8 inches deep, with the width set by model: 50 3/4, 62 3/4, 74 3/4 or 96 3/4 inches. Clearance to combustibles is zero at the bottom, sides and back, and 3 9/16 inches from the top of the appliance to a mantel. Finishing is your choice at the end, since both the frameless flange and the one-piece adjustable trim come in the box.

What electrical does the Napoleon Astound Built-In need?

A dedicated 15 amp grounded circuit, running at either 120 or 240 volts. At 120 volts it draws a maximum of 1,500 watts and can be plugged in or hardwired. At 240 volts it draws 3,000 watts, reaches its full 10,000 BTU, and must be hardwired. Napoleon specifies the circuit rather than the wire gauge, because gauge depends on the run length and your local electrical code, so sizing the conductors is a licensed electrician's call.

Do you need 240V to get the full heat output of the Astound?

Yes. The Astound Built-In reaches its maximum 10,000 BTU only when hardwired to 240 volts, where it draws 3,000 watts. On a standard 120 volt connection it runs the identical flame at half the heat, 1,500 watts. The flame works independently of the heater either way, so you can run the fire with no heat at all in warmer months. Decide before the wall closes, because changing from 120 to 240 volts later means opening it back up.

What is the difference between the Astound Built-In and the FlexMount?

Depth, and what your wall can take. The Built-In is the deeper of the two and is recessed only, so it needs a purpose-built opening, and that depth buys a larger firebox and more presence on the wall. The FlexMount is roughly half the depth and is the flexible one: it hangs on a finished wall, half-recesses into a standard 2x4 stud bay, or builds in flush, and it runs one, two or three-sided. The Built-In is single-sided in every installation but goes up to 96 inches wide, which the FlexMount does not reach. If the wall is being framed anyway and you want the bigger firebox, take the Built-In. If the wall is already finished, look at the FlexMount.

Need help choosing the right setup?

Our experts can help with sizing, installation, and choosing the right model for your space.

Call or text: (866) 713-2399
Email:
support@modernblaze.com