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Modern Flames Redstone 42" Built In Electric Firebox Insert

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$1,599.00 $2,110.68


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Upgrade your space or existing fireplace with the new Modern Flames RedStone traditional Built-in / Flash mount electric firebox. Modern Flames RedStone electric fireplace features new Hybrid-FX™ flame technology maximizing the flame height in an enlarged vertical viewing area. Ultra-bright RGB LED lights technology gives a spectrum of color options - 10 different unique colors. High intensity independently controlled up RGB lighting, down lighting & flame color provide an unmatched look. Acrylic crystal media and highly detailed glowing driftwood logs are both come standard. The RedStone uses low energy LED flame technology and plugs into a standard outlet. Just slide into your existing zero clearance fireplace enjoy!

The RedStone’s 5000 BTU heater warms spaces up to 400 sqft. Adore the flames with or without heat for year-round ambiance. Modern Flames Redstone Series is best option to retrofit wood burning masonry fireplaces. Modern Flames RedStone traditional electric fireplace comes with picture frame trim piece. Slide-In 1 5/8" finish trim it also included with the unit. This electric fireplace inserts easily operates with hi-tech touch screen controls or sleek remote control. Modern Flames RedStone traditional Built-in / Flush mount electric firebox offers a stylish and traditional aesthetic that is sure to breath life into your space.

Available  in 5 sizes: 26'', 30'', 36'', 42''54''


  • Stunning Sophisticated Traditional Design and clean face appearance
  • NEW Hybrid-FX Flame Technology with Random, Beautiful Flame Image
  • 4 different flame speed settings
  • High Intensity realistic Flame 10 unique flames colors
  • Acrylic crystal & Realistic Highly Detailed glowing driftwood logs both included
  • Flame, Downilght & Ember Bed Colors Controlled Independently or Synchronized
  • Low energy LED flame technology
  • Best on the Market for Retrofitting Wood burning Masonry Fireplaces
  • Can be Installed Beneath a TV
  • Do it Yourself Installation Instructions
  • 1 5/8" Finish Trim Kit Included with the unit
  • Optional Wide Insert Trim available for purchase 
  • Hi-tech touch screen controls
  • Sleek remote control
  • Sleep TImer 30 min - 8 hours
  • Easy plug in 120 Volt outlet and enjoy the ambiance
  • 1500 watt/ 5000 BTU heater
  • Variable Heat with Thermostat
  • All season usage: flames operate with or without heat

    Best Design Styles

    • ClassicContemporary; Traditional


    • Modern Flames Redstone 42" Built-In / Recessed Electric Firebox Insert
    • 1 5/8" Finish Trim Kit
    • Multi-Function Remote
    • 2 Years Warranty
    Brand Modern Flames
    Finish/Color Black
    Media Bed Logs  
    Installation Built-In
    Weight N/A
    Heat Location Front Top Vents
    Warranty 2 Years
    Remote Control Multi-Function 
    Volts 120V 
    Amps 14
    Watts 1465
    Wiring Plug In
    Bulb Type LED
    BTUs 5,000 
    Heating Area 400 sqft




    Fireplace: 39 3/4''W x 27''H x 9 1/4''D

    Viewing Area: 38 1/2''W x 23 1/2''H

    Fireplace w/ 1 5/8" Trim: 41 3/4''W x 29''H x 9 1/4''D

    Framing / Rough Opening: 38 3/4''W x 26 3/4''H x 10''D



    Modern Flames Redstone Electric Firebox Insert Demo Video

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    • Items are shipped/processed within 1-3 business days. We strive to deliver all items within 3-7 Business Days, depending on final destination. All items are delivered via FedEx, UPS, USPS or a reputable and reliable local carrier.
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    • Please inspect carefully carton and contents when your product arrives. If the product is damaged, document it on the driver's delivery receipt and contact us immediately no later than 24 hours from delivery time. We cannot accept responsibility for a damaged shipment if it is not noted as such on the driver's delivery receipt. Damage must be noted at the time of delivery.


    Your newly purchased Electric Fireplace Unit is covered by the Manufacture Limited Warranty, subject to Terms and Conditions. View full Manufacture Limited Warranty below.


    If you have technical issues with your electric fireplace unit, within the warranty period, please consult your product manufacturer's warranty. You can contact either us at or contact the manufacturer of your product. We are here to help you. 

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    Satisfaction Guarantee: At Electric Fireplaces Depot we work with many top brands in the industry and all our products are of the highest quality. We want you to be happy and satisfied with your purchase and enjoy it for many years to come. We offer Satisfaction Guarantee with 30 Days Return Policy. Please contact us for return authorization and instructions within 30days. We ask that you return item in the original packaging, with all original content and in sellable condition.  

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