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NO SALES TAX & FREE SHIPPING On Most Orders! Call or Text (800) 923-4556 to get the lowest price online! NOW OPEN 7 DAYS A WEEK, 9AM-7PM EST
NO SALES TAX & FREE SHIPPING On Most Orders! Call or Text (800) 923-4556 to get the lowest price online! NOW OPEN 7 DAYS A WEEK, 9AM-7PM EST

Modern Flames RedStone 30" Built-In Electric Fireplace Insert RS-3021

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Original Price $1,321.65
Current Price $1,099.00
SKU RS-3021

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Modern Flames RedStone 30" Built-In Electric Fireplace Insert RS-3021 Review

Are you looking for an electric fireplace with the traditional design you love from the classic wood-burning fireplace? You can have it all and more with the Modern Flames RedStone 30" Built-In Electric Fireplace Insert RS-3021!

Modern Flames has revamped its built-in, flush-mount conventional fireplace category with its new RedStone electric fireplace. The RedStone features our new Hybrid-FX™ flame technology maximizing the flame height in an enlarged vertical viewing area. Some of the eye-catching features include high-intensity RGB independently controlled up lighting, down lighting & flame color. 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” of depth in a wall for the built-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 & the RedStone is available in sizes 36” & 42”.

Do you fancy this electric fireplace but want a different size? 26"RS-2621, 30" RS-3021, 36" RS-3626 & 42" RS-4229. You can also check out other Modern Flames Fireplaces.

Purchase this flexible and stylish Modern Flames RedStone 30" Built-In Electric Fireplace Insert RS-3021 today!


  • Built-In or Clean Face Installation
  • Can be installed beneath a TV
  • No venting required
  • 10 Flame Color Options 
  • 10 Ember Bed Color Options
  • 10 Down Light Color Options
  • Low Energy LED Flame Technology
  • Hybrid-FX™ Flame Technology Independently Controlled Flame & Ember Bed
  • Variable Flame Controls
  • Clear Crystal Media Included
  • Log Set Included
  • Finish Trim Kit Included
  • Sleek Remote Included
  • Touch Button Controls
  • Flame operates with or without the heater
  • Do it Yourself Installation Instructions
  • Sleep Timer: 30 mins. to 8 hours
  • Two Heat Settings: 1465 W on High / 750 W on Low setting
  • Variable heat with Thermostat
  • Heats 400 sq. ft. with 5000 BTUs
  • Plugs into a standard 120V outlet
  • 1 Year Limited Warranty


  • Dimensions (H x W x D): 18-1/2" x 29-1/4" x 9-7/8"
  • Viewing Area (W x H): 28" x 15-7/8"
  • Watts: 1465 W on High / 750 W
  • Heating Area: 400 sq. ft.
  • Voltage: 120V
  • BTUs: Up to 5,000 BTU

Red Logs Off


Orange Logs Off


Orange Blue

Blue Logs Off



We work very hard to ensure we offer the absolute best prices online. We work with suppliers and manufacturers directly to make sure they set minimum advertised pricing guidelines for all of our competitors. This means that everyone else selling the same product online is supposed to be selling it at the same price. If you find another online store that offers a lower price than us within 30 days of your purchase date, please let us know, and we will contact the brand to ensure they are not breaking the minimum advertised price policy. If you qualify for a refund, you will be refunded the difference in price to your credit card.

We want you to feel confident that you are getting the absolute best price for the product you are ordering. If you find that our website has a lower price for the same item you have ordered within 30 days of your purchase date will refund the difference as well.

To request your partial refund, just email us a link to the product on our website and our competitor's website, within 30 days from the date of your order, and we will process the credit accordingly.

Our 100% Price Guarantee has some limitations:

  • You must purchase the item from our website before requesting your Price Match Guarantee
  • Promotions such as rebates and "buy one, get one free" offers are not eligible
  • The item must be in stock on the competitor's website
  • The competitor must be an online store; they may not have a retail location
  • The website cannot be a discounter or auction website (i.e., eBay, Overstock, Walmart, Amazon, etc..)
  • The competitor must be an Authorized Retailer of the product in question
  • The Price Match Guarantee includes the item price and the shipping charges; it excludes sales tax

    If you want to check if we can price match a product before you place your order, please contact us.

    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.

    Defects must be brought to the attention of Modern Flames Technical Service Department. Contact information below. Please have proof of purchase, model number, and serial number available when calling. 

    Phone: 877-246-9353

    Fax: 602-243-6523

    Address: 3515 E. Atlanta Ave. Phoenix, AZ 85040

    Limited warranty requires proof of purchase of the product.


    This warranty does not cover consumable items such as bulbs and fuses which have a limited lifespan. This warranty does not cover product that has 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.

    We are an authorized dealer for every brand we sell!

    Our SATISFACTION GUARANTEE and LOWEST PRICE GUARANTEE let you rest easy knowing you'll be taken care of, no matter what happens.

    why buy from us

    By buying from us you qualify for the full manufacturer warranty, save time and money! We ship directly to your door from the manufacturer's warehouse. Every product is checked for quality assurance and packaged with the utmost care to ensure it arrives in perfect working condition. We ship with only the best carriers including UPS, FedEx, USPS, and trusted freight companies to get your product to you in the fastest time possible. We even offer discounts with most orders just to make your day a little better.

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    Customer Reviews

    Based on 4 reviews
    Tim Hunter

    I really like the fireplace, but I'm very pleased with the service I received. Communication was prompt and informative from the moment I placed my order. This item was shipped quickly and delivered in perfect condition.

    Ashley Sanchez
    Encouraging Customer Service

    Very happy with the customer experience. Extremely professional and easy to work with. Looking forward to working with you again if I have a client looking for a fireplace.

    Emelly Collins
    Beautiful Product

    Thank you to this store for providing a high-quality goods. I appreciate its gorgeous flames while relaxing around its warmth ambers, very proud that I acquired this thing. This gets a double thumbs up:)


    It is my first time to buy from this store and they assisted me and help me choose the perfect Fireplace for me. The item arrived on time and it is perfect for my living room. Thank you!