Linear electric fireplace sizes are sold by a single number, like 50 or 60 inches, but that number is neither the opening you frame nor the flame you see. Before you pick a width, you need three measurements from the spec sheet: overall width, framing (rough opening) size and glass viewing width. This guide pulls those numbers from Amantii’s own spec sheets for the Symmetry Lumina series, shows what each size range is available in at our store, and explains why a wider unit usually does not mean more heat.
Nominal size vs real dimensions
Amantii publishes a technical drawing for each Lumina width. Here is what four of them say (Amantii spec sheets SYM-34, SYM-50, SYM-60 and SYM-74):
| Model | Overall width | Glass viewing width | Framing size (H x W x D) | Shipping weight | Our price |
|---|---|---|---|---|---|
| Lumina 34 in | 34 1/2 in | 30 5/8 in | 15 3/4 x 33 3/8 x 6 1/2 in | 68 lb | $1,899 |
| Lumina 50 in | 52 1/4 in | 48 1/2 in | 15 3/4 x 51 1/4 x 6 1/2 in | 95.3 lb | $2,399 |
| Lumina 60 in | 62 1/4 in | 58 3/8 in | 15 3/4 x 61 1/4 x 6 1/2 in | 116.4 lb | $2,599 |
| Lumina 74 in | 76 1/4 in | 72 3/8 in | 15 3/4 x 75 1/4 x 6 1/2 in | 139.46 lb | $2,999 |
Two patterns stand out. On the 50, 60 and 74 in models, the overall width is about 2 1/4 in more than the name and the visible glass is about 1 1/2 to 1 5/8 in less. And every width shares the same height (16 7/8 in overall, 13 1/8 in of viewing glass) and the same 6 1/2 in depth. The wider unit gives you a longer flame, not a taller one. If you want more height, Amantii makes Extra Tall versions, such as the 60 in Symmetry Extra Tall Lumina ($3,599).
Does a bigger linear fireplace give more heat?
Usually not. The Lumina spec sheets list the same heater at every width we checked: 1,500 W on high, 750 W on low, 12.5 A at 120V, and an approximate heating area of 400 sq ft. The Lumina listings we checked (34, 50, 60, 74 and 100 in) describe the same 1,500 W heater with a smart thermostat from 59°F to 82°F. The Panorama Slim listings at 40, 60 and 88 in all describe supplemental heat for 400 to 500 sq ft, and the TruView Slim 60 in lists up to 400 sq ft.
So choose the width for the wall and the look. If you need more warmth for a large room, a bigger fireplace will not fix that; plan for other heat. Our electric fireplace buying guide covers heat output in more detail.
What size linear electric fireplace for your wall?
- Start with the framing size, not the name. A 60 in Lumina needs a 61 1/4 in wide opening, plus whatever framing your finish needs around it. Measure the wall width you actually have between corners, windows, doors and built-ins.
- Check depth. The Lumina needs a 6 1/2 in deep opening. A 2×6 stud is 5 1/2 in deep, so many installs need a framed chase or bump-out rather than a plain stud cavity. Panorama Slim units are listed at just under 7 in deep. Our guide to recessing an electric fireplace into a wall walks through framing.
- Tape it out. Mark the overall width and height on the wall with painter’s tape and look at it from the sofa. It is the quickest way to see whether 50 in feels lost or 74 in feels crowded.
- Plan the power. At 12.5 A, the Lumina draws a large share of a standard 15 A circuit, so follow the manual’s circuit requirement and have an electrician confirm it.
Sizing a linear fireplace with a TV
When a fireplace sits under a TV, many people want the two to line up visually. A 16:9 TV is about 0.87 times its diagonal wide:
| TV size (diagonal) | Approx. screen width | Lumina widths that land close |
|---|---|---|
| 55 in | about 48 in | 50 in (52 1/4 in overall) |
| 65 in | about 57 in | 60 in (62 1/4 in overall) |
| 75 in | about 65 in | 60 or 74 in |
| 85 in | about 74 in | 74 in (76 1/4 in overall) |
Matching or slightly exceeding the TV width tends to look intentional; a fireplace much narrower than the screen can look undersized. This is a style call, not a rule. What is a rule is clearance: follow the manual’s minimum distances to mantels and anything mounted above.
Linear electric fireplace 60 inch options
If you are shopping for a 60 inch unit, we carry several:
- Symmetry Lumina 60 in, $2,599: Wi-Fi app, specs above.
- Symmetry Bespoke 60 in, $2,899.
- Panorama Slim 60 in, $2,599: listed for indoor or outdoor installation, just under 7 in deep, fully recessed.
- TruView Slim 60 in, $2,799.
- WM-FM 60 in, $2,237: built in or wall mounted.
- Symmetry Basic 60 in, $1,599: the lowest priced 60 in Amantii we list.
Linear electric fireplace sizes available
| Series | Widths we list |
|---|---|
| Symmetry Lumina | 34, 42, 50, 60, 74, 88, 100 in |
| Symmetry Bespoke | 34, 42, 50, 60, 74 in |
| Symmetry Extra Tall (Lumina and Bespoke) | 42 (Lumina), 50 (Bespoke), 60, 74 in |
| Panorama Slim / Deep | 40, 50, 60, 72, 88 in |
| TruView Slim | 30, 40, 60, 72 in |
| WM-FM | 34 to 100 in |
The longest options are the Lumina 88 in ($3,399), the Panorama Slim 88 in ($2,999) and the Lumina 100 in ($3,699). Browse the full range on our Amantii brand page, and see how the series differ in our Amantii electric fireplace review.
Frequently asked questions
What size linear electric fireplace do I need?
Pick by wall space and look, not heat. Measure the space, check the framing size on the spec sheet (a 60 in Lumina needs 61 1/4 in), and confirm you can build out 6 1/2 in of depth.
How wide is a 60 inch linear electric fireplace?
The Amantii Lumina 60 in is 62 1/4 in wide overall, with 58 3/8 in of viewing glass and a 61 1/4 in framing width.
Do longer electric fireplaces heat more?
Not in the Lumina line: Amantii lists the same 1,500 W heater and about 400 sq ft heating area from 34 to 74 in on the spec sheets we checked.
What size linear fireplace goes under a 65 inch TV?
A 65 in TV is about 57 in wide, so a 60 in class unit (about 62 in overall) lines up well. Follow the manual’s clearances for anything mounted above.
Questions about sizing or framing? Call 866-777-2590, Monday to Friday, 9AM to 6PM PST. Orders of $999 or more ship free by freight, and returns follow our return and refund policy.
