Modern Flames 42" Redstone Built-in Electric Fireplace Insert

Modern FlamesSKU: RS-4229

Sale price$1,599.00


Built-In Flush Mount Conventional Electric Fireplace

The Redstone feature Modern Flame's new Hybrid-FXTM flame technology, which maximizes the flame height in an enlarged vertical viewing area. The Redstone is easily installed in a rough frame wall or a finished opening.

The Redstones' eye-catching features include high-intensity RGB independently controlled up lighting and down lighting with an array of flame color choices. Other standard features include 10 different unique colors to choose from, variable and thermostatically controlled heat, variable motor controls, timer, push button and remote controls. This conventional design can slide into an existing Zero Clearance wood burning fireplace or will need 10” to 12” of depth in a wall for the built-in/slide-in flush mount look. The Redstone plugs into a standard outlet and includes a 5000 BTU heater. Acrylic crystal media and driftwood logs are both standard media.


  • Built-In Finish
  • Single-Sided
  • Simple Installation

Insert Mount Conventional Electric Fireplace

Convert your worn wood burning fireplace into a lively, stunning statement piece the simple way with this easily installed electric fireplace.

Update your old fireplace with this premium electric fireplace insert. With efficient heat and beautiful, life-like flames, designed as an alternative to a wood-burning fireplace and provides a beautiful and affordable substitute. The insert can provide supplemental zone heating up to 500 square feet and can be used with or without heat for year-round enjoyment. These inserts don’t require building a fire, and are even easier to start and maintain. Insert surround kits are available in 4”, 5”, 6” & 8” pieces to customize your existing fireplace with a Redstone model with a classic clean-look, Insert surround sets are for 26”, 30” & 36” models only. Designed to fit into most existing wood burning fireplaces.


  • Insert Finish
  • Single-Sided
  • Simple Installation
  • Designed To Fit Into Most Existing Wood Burning Fireplaces


Flame Display
  • Active Ember Bed Design
  • Variable Speed Flame Control
  • New Hybrid-FXTM Flame Technology
  • 10 Different Flame & Ember Bed Colors
  • High Intensity Multi-Color Flame & Ember Bed
  • Independently Controlled Flame & Ember Bed
  • Orange Lit Log Set
  • Acrylic Crystal Ember Bed
  • LED Lighted Driftwood Log Set
  • Glowing log sets vary in size, 3, 5 or 7 logs, depending on fireplace unit size
  • 5,000 BTU Heater
  • Variable Heat with Thermostat
  • Built-In Touch Controls
  • Multiple Trim Kits for Custom Sizing
  • Handheld Remote


Standard Features

  • Hybrid-FXTM Flame Technology
  • Premium Glowing Log Set
  • 10 Unique Flame Colors with Down Lighting and Ember Bed Lighting
  • Acrylic Crystal Ember Bed
  • Low Energy LED Flame Technology
  • Touch-button Controls
  • New Sleek Remote
  • Can be Installed Beneath a TV
  • Variable Heat with Thermostat
  • Variable Flame Controls
  • 120 Volt Plug
  • Do it Yourself Installation Instructions
  • Finish Trim Kit Included Additional optional Extra Wide Trim Kits also available.


Fireplace Dimensions 39 3/4" W x 27" H x 9 7/8" D
Viewing Area 38 1/2" W x 24" H
Fireplace w/ 1 5/8" Trim 41 3/4" W x 29" H x 9 1/4" D
Volts 120
Installation Built-In / Insert
Finish/Color Black
Media Bed Crystals / Logs
Heating Area Heats 400 sq. ft. with 5000 BTUs
Dedicated 15 Amps (or higher) breaker required
Wiring Hard Wire or Plug into 120 V Outlet
Bulb Type LED
Sleep Timer 30 mins. to 8 hours
Two Heat Settings 1465 W on High / 750 W on Low setting
Warranty 2 Years
What's Included Electric Fireplace, Remote Control, Glass Media, Log Set, Trim Kit, and User's Manual 



    Grand Canyon Cannon Balls Decorative Media


    • Grand Canyon Cannon Balls Decorative Media can help you create a unique and eye-catching fire feature, indoors or outdoors. Enjoy the flames and beautiful display with additional decorative media!
    • This decorative media can be used anywhere you want and are available in sizes - 2", 4", and 6" diameter in Black, Dark Gray, and Silver.
    • 12-pc 2" Cannon Ball Set 
    • 8-pc 4" Cannon Ball Set 
    • 4-pc 6" Cannon Ball Set 


      CA Residents: 
      See Prop 65 WARNING.


      In the unlikely event of a problem occurring due to a manufacturing defect within twenty-four months (24) from the date of purchase of the appliance, parts will be supplied for repair or the product will be replaced free of charge. Repair or replacement is at the option of Modern Flames. Labor is covered for twelve months (12) from the date of purchase.


      This warranty does not cover consumable items such as bulbs and fuses, which have a limited lifespan. This warranty does not cover product that have been altered in any way or that has been installed incorrectly. This warranty does not apply to defects resulting from misuse, abuse, neglect, poor handling, or operation with an incorrect power source.

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