The Modern Flames Landscape Pro Slim is one of the few modern flames fireplace options built to run in a living room and on a covered patio without swapping units. That dual rating is the whole pitch: one frameless linear fireplace, five widths, and a spec sheet that holds up whether it is recessed into a great room wall or a covered outdoor kitchen. We pulled the manufacturer's installation and outdoor rating documents, cross checked the heat and electrical numbers against the listing, and looked at where this fireplace actually earns its price versus where a cheaper indoor only unit would do the same job.
TL;DR
The Landscape Pro Slim runs on Modern Flames' Hybrid-FX flame technology, which separates the flame, ember bed, and downlighting into three independently controlled RGB zones instead of one fixed color scheme. That means you can run a traditional orange flame over a cyan ember bed, or drop the whole unit to a single accent color for a summer evening when you do not want heat at all. The flame and heater are fully decoupled, so the fireplace runs as a light fixture year round and only draws its full 1,500 watts when the heater is switched on.
Physically, it is a frameless, edge-to-edge glass linear unit that recesses into a 2 inch by 6 inch wall cavity at 5.5 inches deep, which is the same footprint as a standard interior stud wall. That is a meaningfully slimmer install than older built-in electric fireplaces that need a furred-out 8 to 10 inch wall, and it is a big part of why this model works for both new construction and retrofits into an existing wall.
Our Top Pick: Modern Flames Landscape Pro Slim, installed on a covered outdoor patio
This fireplace earns its keep in two specific situations: rooms where you want a full-width focal wall without a deep chase, and covered outdoor living spaces where most electric fireplaces are not rated to go at all. Modern Flames publishes a separate outdoor installation and rating document for the Landscape Pro Slim series, and the covered-patio use case shows up directly in the product photography and tags, not as an afterthought.
Indoors, the narrower widths (44" and 56") suit bedrooms, condos, and secondary living rooms where floor space matters and a mantel-style unit would eat too much wall depth. The wider 80" and 96" versions are built for great rooms and open-concept living areas where the fireplace needs to hold its own against a two-story ceiling or a wide media wall. Outdoors, it is built for a covered patio, outdoor kitchen wall, or three-season room, not an uncovered deck exposed to direct rain or snow.
Worth Considering: the same Landscape Pro Slim platform indoors, framed by a stacked stone accent wall
If you are comparing this to a wall mounted electric fireplace for a strictly indoor room, the Landscape Pro Slim is overbuilt for that job since you are paying for outdoor-rated components you will not use. It makes more sense once outdoor or covered-patio installation is actually on the table.
Within the Modern Flames lineup, the Landscape Pro Slim sits below the Orion series on price and above the entry Redstone inserts, and its main differentiator is the indoor/outdoor rating rather than raw flame realism. The Orion Multi and Orion Traditional use a different flame engine aimed at more dramatic, layered flame depth for a pure indoor showpiece installation, and they cost meaningfully more. The Redstone insert series is built for retrofitting an existing masonry or gas fireplace opening and is indoor only.
Against fireplaces from other brands built for outdoor duty, the practical differentiator is depth: at 5.5 inches, the Landscape Pro Slim recesses into a standard wall, where a lot of outdoor-rated units from other manufacturers need a deeper, custom-built chase. If your outdoor wall is already framed at 2x6, that is a real difference in installation cost, not just a spec sheet number.
Every size ships with the fireplace unit, a black smoke acrylic crystal media kit, a driftwood log set, clear acrylic stones, a remote control, and the printed manual. A mesh safety screen and reflective fire glass are sold separately as accessories if you want to swap the included media.
Room Fit Example: the 80" Landscape Pro Slim anchoring a two-story great room wall
Electrical specs are consistent across all five widths: 120V, 1,500W, 14A, on a dedicated flexible 20-amp, 120-volt circuit, delivering up to 5,000 BTU with two heat settings and a fan rated around 40 dB. Modern Flames backs the unit with a 2-year manufacturer warranty, and it meets HUD construction and safety standards for manufactured homes when installed to the manufacturer's instructions. If your room is larger than roughly 500 sq ft, plan on this as ambiance plus supplemental heat, not your only heat source, and check the full electric fireplace lineup if you need a higher-BTU indoor-only unit for a bigger space.
Because the Landscape Pro Slim ships hardwired only, plan the dedicated 20-amp, 120-volt circuit before the fireplace arrives, not after. That is a common gap on outdoor patio installs specifically, since the circuit often has to be run from an interior panel out through an exterior wall, which is a bigger job than the fireplace install itself. Budget for an electrician if you do not already have a run available near the install point.
Measure the actual framing opening against the size-specific framing dimensions in the spec table before ordering, not just the nominal width. A 56" unit needs roughly 56.5 inches of clear framing width, and the difference between the viewing area and the overall unit size can catch people who framed to the wrong number. For an outdoor install, also confirm the wall cavity stays dry and that the covered structure genuinely blocks direct rain, since the outdoor rating assumes a covered patio, not an open deck.
Is the Landscape Pro Slim actually safe to install outdoors?
Yes, for covered applications. Modern Flames publishes a specific outdoor installation and rating document for this series, and it is UL Listed and ETL Approved for covered-patio use, not just indoor rooms. It is not rated for direct rain, snow, or uncovered exposure.
How deep of a wall do I need?
The unit is designed to fully recess into a standard 2 inch by 6 inch wall at 5.5 inches deep, with overall framing dimensions running about 0.5 inch larger than the unit itself depending on size.
Can I run the flame without the heat?
Yes. Flame, ember bed, and downlighting operate independently of the heater, so you can run it as a light feature with the heat switched off, which is common for outdoor use in warmer months.
What sizes are available?
Five widths: 44", 56", 68", 80", and 96", all sharing the same 14" viewing height and 5.5 inch installation depth.
What is the warranty?
Modern Flames covers the Landscape Pro Slim with a 2-year manufacturer warranty.
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