A linear electric fireplace should measure roughly one-half to two-thirds of the width of the wall section the fireplace anchors, and the Modern Flames Landscape Pro Slim and Landscape Pro Multi are each sold by American Hearth Supply in 44, 56, 68, 80 and 96 inch widths. Every figure below comes from the installation manual for that exact model, with the manual number cited beside the figure, and a figure a manual does not publish is marked as not published.
What is a linear electric fireplace?
A linear electric fireplace is a wide, low electric fireplace whose flame display is several times wider than tall. The Modern Flames Landscape Pro Multi LPM-4416V2 has a viewing area 43 1/4" wide by 15 7/8" high, a width-to-height ratio of about 2.7 to 1 (Modern Flames 07-00011, Product Guide).
The Modern Flames Landscape Pro Slim and Landscape Pro Multi burn no fuel, so neither model needs a chimney, a gas line or a vent pipe. Each model needs a framed opening and a hardwired electrical circuit (Modern Flames 07-00012 REV C, Hard Wiring section; Modern Flames 07-00011, Hard Wiring section).
What size linear electric fireplace do I need for my wall?
Choose a linear electric fireplace that measures one-half to two-thirds of the width of the wall section the fireplace anchors. For a 10 foot (120") wall section, the one-half to two-thirds rule gives 60" to 80", so the Modern Flames Landscape Pro Slim and Landscape Pro Multi in 68" and 80" widths both fall in range.
The one-half to two-thirds rule is a design rule of thumb, and none of the Modern Flames manuals publishes a wall-width rule. The table applies the rule to the five widths of the Modern Flames Landscape Pro Slim and Landscape Pro Multi.
| Wall section width | Fireplace width range (1/2 to 2/3) | Landscape Pro Slim and Multi widths in range |
|---|---|---|
| 6 ft (72") | 36" to 48" | 44" |
| 7 ft (84") | 42" to 56" | 44", 56" |
| 8 ft (96") | 48" to 64" | 56" |
| 9 ft (108") | 54" to 72" | 56", 68" |
| 10 ft (120") | 60" to 80" | 68", 80" |
| 12 ft (144") | 72" to 96" | 80", 96" |
| 14 ft (168") | 84" to 112" | 96" |
A wall section that falls in the overlap between two rows leaves the choice between two Modern Flames Landscape Pro widths, and the wider width fills more of the wall. The framing opening is the manual figure that has to fit between the studs, and finishing and trim allowances beyond the framing opening are not published in 07-00012 REV C or 07-00011.
What size framing opening does a Modern Flames Landscape Pro need?
The Modern Flames Landscape Pro Slim needs a framing opening from 44 1/4" to 96 1/4" wide by 24 1/8" high by 6" deep, depending on size (Modern Flames 07-00012 REV C, Product Guide). The Modern Flames Landscape Pro Multi needs a framing opening from 44 3/8" to 96 3/8" wide by 25 1/4" high by 12" deep (Modern Flames 07-00011, Product Guide).
The table lists the framing opening, framing depth and electrical requirement for every Modern Flames Landscape Pro Slim size sold by American Hearth Supply. Each wattage is paired with the voltage printed beside the wattage in the manual.
| Slim model | Size | Framing opening (W × H) | Framing depth | Electrical at 120V AC, 60 Hz | Circuit and connection |
|---|---|---|---|---|---|
| LPS-4414V2 | 44" | 44 1/4" × 24 1/8" | 6" | 1,465 W at 120V AC, 13 A | Dedicated 20 A breaker, hardwired |
| LPS-5614V2 | 56" | 56 1/4" × 24 1/8" | 6" | 1,465 W at 120V AC, 13 A | Dedicated 20 A breaker, hardwired |
| LPS-6814V2 | 68" | 68 1/4" × 24 1/8" | 6" | 1,465 W at 120V AC, 13 A | Dedicated 20 A breaker, hardwired |
| LPS-8014V2 | 80" | 80 1/4" × 24 1/8" | 6" | 1,465 W at 120V AC, 13 A | Dedicated 20 A breaker, hardwired |
| LPS-9614V2 | 96" | 96 1/4" × 24 1/8" | 6" | 1,465 W at 120V AC, 13 A | Dedicated 20 A breaker, hardwired |
The Modern Flames Landscape Pro Slim manual lists 120V only, and a 240V option is not published in 07-00012 REV C. The Modern Flames Landscape Pro Slim figures above come from the Product Guide and Power Data pages of Modern Flames 07-00012 REV C.
The table lists the same three figures for every Modern Flames Landscape Pro Multi size sold by American Hearth Supply, plus the optional 240V rating the Modern Flames Landscape Pro Multi manual prints.
| Multi model | Size | Framing opening (W × H) | Framing depth | Electrical | Circuit and connection |
|---|---|---|---|---|---|
| LPM-4416V2 | 44" | 44 3/8" × 25 1/4" | 12" | 1,465 W at 120V AC, 13 A; optional 2,930 W at 240V AC | Dedicated 20 A breaker, hardwired |
| LPM-5616V2 | 56" | 56 3/8" × 25 1/4" | 12" | 1,465 W at 120V AC, 13 A; optional 2,930 W at 240V AC | Dedicated 20 A breaker, hardwired |
| LPM-6816V2 | 68" | 68 3/8" × 25 1/4" | 12" | 1,465 W at 120V AC, 13 A; optional 2,930 W at 240V AC | Dedicated 20 A breaker, hardwired |
| LPM-8016V2 | 80" | 80 3/8" × 25 1/4" | 12" | 1,465 W at 120V AC, 13 A; optional 2,930 W at 240V AC | Dedicated 20 A breaker, hardwired |
| LPM-9616V2 | 96" | 96 3/8" × 25 1/4" | 12" | 1,465 W at 120V AC, 13 A; optional 2,930 W at 240V AC (see note) | Dedicated 20 A breaker, hardwired |
The Modern Flames Landscape Pro Multi manual 07-00011 also lists a 120" size, LPM-12016V2, with a 120 3/8" × 25 1/4" × 12" framing opening, and American Hearth Supply sells the Modern Flames Landscape Pro Multi in 44" to 96" widths only. The Modern Flames Landscape Pro Multi power table prints the 240V entry for LPM-9616V2 as "2240V", so the 240V rating of the 96" size should be confirmed with Modern Flames before wiring (Modern Flames 07-00011, Power Data).
How deep is a linear electric fireplace?
The Modern Flames Landscape Pro Slim needs 6" of framing depth, and the Modern Flames Landscape Pro Multi needs 12" of framing depth (Modern Flames 07-00012 REV C and 07-00011, Product Guide). The 6" difference in framing depth between the Modern Flames Landscape Pro Slim and the Modern Flames Landscape Pro Multi decides whether the wall can hold the fireplace or needs a built-out chase.
A 2x4 stud measures 3 1/2" deep and a 2x6 stud measures 5 1/2" deep, which are general lumber dimensions and not manual figures. The Modern Flames Landscape Pro Slim manual describes a fully recessed single-sided installation "optimized for a 2x6 framed wall" and a partially recessed installation "optimized for a 2x4 framed wall" (Modern Flames 07-00012 REV C, Built-In Installation section).
The Modern Flames Landscape Pro Multi manual names a half recessed installation "optimized for a 2x4 framed wall" and prints no wall type for the fully recessed installations, so the 12" framing depth of the Modern Flames Landscape Pro Multi is the figure to plan the wall around (Modern Flames 07-00011, Installation section). The Modern Flames Landscape Pro Multi manual also shows 3-sided (bay) and fully recessed corner installations, and the 3-sided installation directs the framed opening to the Product Guide chart (Modern Flames 07-00011, Installation section).
What wattage and voltage does a linear electric fireplace need?
The Modern Flames Landscape Pro Slim is rated 1,465 W at 120V AC on a dedicated 20 A breaker, and the Modern Flames Landscape Pro Multi is rated 1,465 W at 120V AC with an optional 2,930 W at 240V AC (Modern Flames 07-00012 REV C and 07-00011, Power Data). Both manuals print 60 Hz and 13 A for the 120V rating.
The Modern Flames Landscape Pro Slim and Landscape Pro Multi are hardwired, and neither manual describes a plug-in installation. Both manuals prohibit an extension cord or relocatable power tap (Modern Flames 07-00012 REV C and 07-00011, Important Instructions).
The Modern Flames Landscape Pro Multi wired for 240V needs a 20 A or higher 2-pole breaker, and the manual calls for a dedicated 220~240 volt, 20 amp circuit (Modern Flames 07-00011, Hard Wiring section, pp. 16 and 17). Mantel, ceiling and TV-above clearances are not published in either Modern Flames manual, and the Modern Flames Landscape Pro Slim and Landscape Pro Multi manuals state only that combustibles stay at least 3 feet (0.9 m) from the front.
Does a linear electric fireplace need an electrician?
Yes, the Modern Flames Landscape Pro Slim and Landscape Pro Multi manuals each direct the wiring to a qualified electrician. The Modern Flames Landscape Pro Slim manual says: "A qualified electrician must wire this fireplace to a dedicated 110-120 volt, 20 amp circuit." (Modern Flames 07-00012 REV C, Hard Wiring section).
The Modern Flames Landscape Pro Multi manual says: "A qualified electrician must wire this fireplace to a dedicated 110 volt, 20 amp circuit." for 120V wiring (Modern Flames 07-00011, p. 16). American Hearth Supply sells equipment only and does not install electric fireplaces.
What comes in the box with a linear electric fireplace?
The Modern Flames Landscape Pro Slim box holds the fireplace with front glass, an L-metal mounting bracket set, a remote with battery, a battery tool, a Canyon Driftwood log set, smoke acrylic crystals, clear acrylic stones, trim, a suction cup and the owner's manual (Modern Flames 07-00012 REV C, Parts and Hardware). The Modern Flames Landscape Pro Slim wall-mount touch control is sold separately.
The Modern Flames Landscape Pro Multi box holds the fireplace, an owner's manual, 6 screws, a remote, a Canyon Driftwood log set, front glass, 2 metal side panels, 2 side glass panels, 2 suction cups, 2 to 4 L-metal mounting brackets depending on model, a smoke acrylic crystals package, a clear acrylic stones package and a 1-piece trim kit (Modern Flames 07-00011, Parts and Hardware, p. 5). The Modern Flames Landscape Pro Multi 5-piece trim kit and wall-mount touch control are listed as sold separately.
The Modern Flames Landscape Pro Slim and Landscape Pro Multi boxes do not include wall framing, finishing materials, or the tools the manuals list: a Phillips screwdriver, stud finder, level, tape measure, electric drill, 1/4" wood drill bit and hammer (Modern Flames 07-00011, Tools section).
What other linear electric fireplace sizes does American Hearth Supply sell?
American Hearth Supply also sells the SimpliFire Allusion Platinum in 50", 60" and 72", the SimpliFire Scion 55", the SimpliFire 36" Built-In and the Napoleon Astound Built-In in 50", 62", 74" and 96". The table lists the framing opening and electrical rating printed in the manual for each model, and the built-in, recessed and wall mounted electric fireplace guide gives the clearances, electrician lines and box contents for each model.
| Model | Sizes | Framing opening (W × H) | Electrical | Manual |
|---|---|---|---|---|
| SimpliFire Allusion Platinum | 50", 60", 72" | 51" × 19-5/8"; 61" × 19-5/8"; 73" × 19-5/8" | 1,500 W at 120V AC, 60 Hz, 12.5 A; hardwired, plug-in kit available | 2044-980 Rev. L, Figure 4.1 |
| SimpliFire Scion 55 (SF-SCN55) | 55" | 57" × 24-1/4", 7-5/8" deep | 1,400 W at 120V AC or 2,800 W at 240V AC, 60 Hz, 11.6 A; hardwired | SF-SCN-MAN Rev D, Figure 4.1 |
| SimpliFire 36" Built-In (SF-BI36-EB) | 36" | 37-3/4" × 31-1/2" at 120V; 37-3/4" × 33-1/2" at 240V | 1,400 W at 120V (11.7 A), 2,100 W at 208V (10.1 A), 2,800 W at 240V (11.7 A) | 2040-980 Rev. P, Figure 4.1 |
| Napoleon Astound Built-In | 50", 62", 74", 96" | 50 3/4", 62 3/4", 74 3/4", 96 3/4" wide × 26 1/4" high × 13" deep | 1,500 W at 120V AC or 3,000 W at 240V AC; dedicated 15 A grounded circuit; hardwired | W415-4170, Sections 1.3 and 2.2 |
Frequently Asked Questions
What size linear electric fireplace fits a 10 foot wall?
A 10 foot (120") wall section calls for a linear electric fireplace between 60" and 80" wide under the one-half to two-thirds rule, which covers the 68" and 80" Modern Flames Landscape Pro Slim and Landscape Pro Multi. The one-half to two-thirds rule is a design rule of thumb and not a figure from Modern Flames 07-00012 REV C or 07-00011.
Can the Modern Flames Landscape Pro Slim go in a 2x4 wall?
The Modern Flames Landscape Pro Slim manual describes a partially recessed installation "optimized for a 2x4 framed wall," and the fully recessed single-sided installation is "optimized for a 2x6 framed wall" (Modern Flames 07-00012 REV C, Built-In Installation section). The framing depth printed for every Modern Flames Landscape Pro Slim size is 6" (Product Guide).
Can a linear electric fireplace plug into a standard outlet?
The Modern Flames Landscape Pro Slim and Landscape Pro Multi cannot be planned as plug-in fireplaces, because both manuals describe hardwiring on a dedicated 20 A circuit and prohibit an extension cord or power tap. The SimpliFire Allusion Platinum is designed to be hardwired at 120V AC and lists an optional plug-in kit for a grounded receptacle (SimpliFire 2044-980 Rev. L, Section 4.C).
Does the Modern Flames Landscape Pro Multi need 240V?
The Modern Flames Landscape Pro Multi runs on 120V AC at 1,465 W as standard, and the manual prints an optional 240V AC rating of 2,930 W for installations wired with a 2-pole breaker (Modern Flames 07-00011, Power Data and Hard Wiring section). The 240V wiring is optional and not required.
Does American Hearth Supply install linear electric fireplaces?
American Hearth Supply supplies equipment only and does not install electric fireplaces. The Modern Flames Landscape Pro Slim and Landscape Pro Multi manuals each direct the electrical connection to a qualified electrician.
Shop the Modern Flames Landscape Pro and Related Models
- Modern Flames Landscape Pro Slim Electric Fireplace
- Modern Flames Landscape Pro Multi Electric Fireplace
- SimpliFire Allusion Platinum Linear Electric Fireplace
- SimpliFire Scion 55" Clean Face Linear Electric Fireplace
- Napoleon Astound Built-In Electric Fireplace
- Indoor electric fireplaces
Manuals and Sources
- Modern Flames Landscape Pro Slim installation manual V2, 07-00012 REV C: Product Guide, Power Data, Built-In Installation, Hard Wiring and Parts and Hardware sections
- Modern Flames Landscape Pro Multi installation manual, 07-00011: Product Guide (p. 4), Power Data (p. 3), Parts and Hardware (p. 5), Hard Wiring (pp. 16 and 17)
- SimpliFire Allusion Platinum installation and operation manual 2044-980 Rev. L (6/25): Figure 4.1 and Section 4.C
- SimpliFire Scion installation manual SF-SCN-MAN Rev D (9/25): Figure 4.1, rating plate and Section 4.C
- SimpliFire SF-BI30-EB and SF-BI36-EB owner's manual 2040-980 Rev. P (9/24): Figure 4.1
- Napoleon Astound Built-in installation and operation manual W415-4170, K-0 (Jun.05.2026): Sections 1.3 and 2.2
