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Spectrum Slimline Built-in/Wall Mounted Electric Fireplace - A modern electric fireplace with glowing flames is mounted on a white brick wall, complemented by a sleek kitchen backdrop.

Modern Flames Spectrum Slimline Built-in/Wall Mounted Electric Fireplace

by Modern Flames
SKU SPS-50B

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$1,599.00
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Modern Flames Spectrum Slimline Built-in/Wall Mounted

  • Flexible Wall Installation: Mount it directly on the wall or recess it into a standard 2"x4" wall, giving you a clean built-in look without major construction work.
  • Realistic Multi-Color Flames: Customizable flame color, brightness, and speed let you dial in the perfect ambiance to match your room's mood or décor at any time of year.
  • Year-Round Flame Display: The flame effect operates independently of the heater, so you can enjoy a cozy, flickering atmosphere even on warm days without raising the temperature.
  • Efficient Zone Heating: With 5,000 BTUs and a Whisper Quiet Fan, this fireplace efficiently warms up to 450 sq. ft., helping you heat only the rooms you use and save on energy costs.
  • Effortless Smart Controls: Operate everything from the included remote or the on-demand-lit touchscreen panel, including a sleep timer that auto shuts off between 30 minutes and 8 hours.
  • Plug-In or Hardwire Ready: Simply plug into a standard 120V outlet for instant setup, or hardwire it for a seamless, cord-free finish that looks like it was always part of the room.
Specifications
Electrical
  • Voltage: 120V
  • Wattage: 1,500W
  • Heat Output: 5,000 BTUs
  • Heating Coverage: Up to 450 sq. ft.
  • Installation Type: Plug-in or hardwire
Flame & Controls
  • Flame Colors: Multi-color with adjustable settings
  • Heat Modes: Hi/Lo with thermostat control
  • Fan: Whisper Quiet Fan
  • Sleep Timer: 30 minutes to 8 hours
  • Controls: Remote control and front touchscreen panel
General
  • Installation: Wall-mounted or recessed into standard 2"x4" wall
  • Use: Indoor only
  • Decorative Media: Clear crystal glass and driftwood log set included
  • Venting Required: No

Spectrum Slimline Built-in/Wall Mounted Electric Fireplace

Transform your space with the Modern Flames Spectrum Slimline Electric Fireplace, the perfect blend of modern style, flexibility, and comfort.

This stunning unit delivers realistic and vivid flames with customizable color, brightness, and speed settings to match your mood or décor. Its flexible installation allows it to be either wall-mounted or recessed into a standard 2"x4" wall, making it ideal for any room layout.

Designed for comfort and convenience, it heats up to 450 sq. ft. with a Whisper Quiet Fan and thermostat-controlled heat settings. The flame display operates with or without heat, so you can enjoy its ambiance year-round.

Control is effortless with the included remote or the on-demand-lit touchscreen panel, giving you the perfect atmosphere at your fingertips.

Spectrum Slimline Electric Fireplace Features

  • For indoor use only – not designed for outdoor spaces
  • Ultra-realistic flames with multiple color choices, adjustable brightness, and flame speed
  • Year-round ambiance: flame display operates with or without heat
  • Flexible installation: recess into a standard 2"x4" wall or mount directly on the wall
  • Clean and safe operation: no combustion, no emissions, and no venting required
  • Supplemental heating: warms up to 450 sq. ft. with 5,000 BTUs
  • Whisper Quiet Fan ensures minimal noise while heating
  • Thermostat with Hi/Lo heat settings automatically adjusts to room temperature
  • Built-in sleep timer shuts off the unit after 30 minutes to 8 hours
  • Easy operation with remote control and front touchscreen panel
  • Includes clear crystal glass and driftwood log set for enhanced flame presentation
  • Installation ready: plug into a standard 120V outlet or hardwire for a seamless finish
Installation
  • Wall-Mounted or Recessed Into Standard 2"x4" Wall Installation
  • Indoor Only
  • Plug-In or Hardwired Installation
Downloads & Resources

Every order ships free to any address in the contiguous United States — no minimums, no fine print.

Your order ships via FedEx or UPS — delivered to your door within 3–7 business days.

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Full manufacturer warranty honored on every purchase. Direct relationship with Modern Flames — not a grey-market reseller.
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Frequently Asked Questions

  • The Modern Flames Spectrum Slimline is available in four sizes: 50", 60", 74", and 100" wide, giving you flexibility for small accent walls up to large living room feature walls. As a general rule, choose a width that is roughly two-thirds the width of your wall or TV for the best visual proportion. All four sizes share the same slim 4" depth and identical feature set, so your choice is purely based on your space.

  • Yes — the Spectrum Slimline is specifically engineered to recess fully into a standard 2" x 4" or 2" x 6" stud wall, with a depth of just under 5". No special or oversized framing is required, making it suitable for both new construction and renovation projects. Its sleek 5/8" trim even allows hardwood or tile to be finished right up to the edge of the opening for a truly built-in look.

  • The Spectrum Slimline produces up to 5,000 BTUs at its highest setting (1,465W on high, 750W on low), which is sufficient to heat a room up to approximately 450 square feet. It includes a built-in thermostat that lets you set a target temperature anywhere between 68°F and 88°F, so the heater automatically adjusts output to maintain your comfort level. It's best used as a zone heater or supplemental heat source for larger spaces.

  • Yes — this is one of the most appreciated features of the Spectrum Slimline. The flame display operates completely independently from the heater, so you can enjoy the visual ambiance year-round without adding any heat to the room. This makes it just as useful in warm climates or summer months purely as a decorative focal point.

  • The Modern Flames Spectrum Slimline comes with a 2-year manufacturer's limited warranty covering defects in materials and workmanship under normal residential use. The warranty specifically includes coverage of the LED lights, heating elements, and electronic components. In the event of a covered manufacturing defect within 24 months of purchase, Modern Flames will supply parts for repair or replace the product free of charge.