Modern Flames  |  SKU: RS-5435

Modern Flames Redstone 54" Built-In Flush Mount Electric Fireplace

Regular price $3,149.00

Images & size shown are for reference only: colors may vary by screen, lighting, & natural material variation. See description for dimensions & finish options or call us to request a sample if an exact match is needed.

Most items ship within 1 business day. Manufacturer-direct items may take up to 2 weeks. Call us before ordering if needed immediately. 718-326-4328

Choose with help from our Maspeth showroom. Read customer reviews on Google.

Northeast shipping only: ME, VT, NY, NH, MA, CT, PA, NJ, MD, DE and RI. For any other state, call 718-326-4328 for a shipping quote before ordering. Product and local-service restrictions apply. Shipping details.

400+ five-star Google reviews
  • Northeast shipping. Eligible orders over $999 ship free within our 11-state area; other eligible orders have a flat rate at checkout. Product exclusions apply. Shipping details.
  • Factory-authorized Modern Flames dealer. You keep the full manufacturer warranty.
  • 30-day returns, no restocking fee.
  • Professional installation available across NYC, Long Island, Westchester, northern NJ and Greenwich/Stamford, CT.
Visit our Maspeth, Queens showroom
58-30 Maspeth Ave
Maspeth, NY 11378
Monday–Friday
9:00 AM–5:00 PM
Saturday
10:00 AM–3:00 PM
Sunday
Closed

Call ahead to confirm the model you want to see and pickup readiness.

Shipping & Delivery Area

  • Online shipping is limited to Maine, Vermont, New York, New Hampshire, Massachusetts, Connecticut, Pennsylvania, New Jersey, Maryland, Delaware and Rhode Island.
  • Eligible orders over $999 receive free standard shipping; eligible orders of $999 or less have a flat rate shown at checkout.
  • Our own trucks deliver eligible local orders up to 120 miles. e-NRG fuel, white-glove delivery and assembly have separate eligibility, distance limits and charges.
  • For other states, or when no delivery option appears, call 718-326-4328 for a quote before ordering.
  • Read the shipping policy for details.

Assembly & Installation

Our company installs in the following areas: Manhattan, Queens, Brooklyn, Nassau, Suffolk, Staten Island, Bronx, & Westchester NY. Hudson, Union, Essex, & Bergen NJ. Greenwich & Stamford, CT. Check out our portfolio of projects we built!

WE OFFER INSTALLATION FOR THE PRODUCTS WE SELL BELOW

Call for a free quote 718-326-4328

Warranty

Manufacturer's warranty their products only if they are purchased from an authorized retailer like us. If an issue occurs and the item was purchased from a 3rd party website i.e. Amazon, your claim may be denied. What this means for you as a customer? As a factory authorized & trained dealer for every brand on our website, you will maintain full manufacturer's warranty. Please click on the manufacturer's manual in the description for full warranty coverage information.

Returns

  • No-Restock Fees
  • 30-Day Return Policy
  • The NYC Fireplaces Team wants you to love what it is that you've ordered! If for some reason you have an issue with your product, we offer a '30-Day Return Policy'.
  • We allow returns on all new, unused, unassembled, and "resalable" items in their original packaging within 30 days of the delivery date for a refund (minus the original shipping costs, and the shipping costs you incur shipping the product back). Naturally, if your return is because of our error, you are not responsible for any shipping costs.

Description

Overall Dimensions: 52 in. W x 33 in. H with 5/8 in. trim (54 in. W x 35 in. H with 1-5/8 in. overlap trim) x 12 in. D

The Modern Flames Redstone 54 (RS-5435) is a traditional-look electric fireplace that either slides into an existing zero clearance wood-burning fireplace or builds flush into a new wall. It is the easy way to turn a fireplace you no longer burn, or a blank wall, into a working fire with real heat.

Hybrid-FX flame technology fills a tall vertical viewing area, with driftwood logs, an acrylic crystal ember bed and independently controlled flame, ember and downlight colors. It plugs into a standard 120V outlet and heats with a 1,465 W (5,000 BTU) heater with thermostat.

Key Specifications

Model RS-5435
Type Built-in or insert electric fireplace, flush mount
Heater 1,465 W / 5,000 BTU, variable heat with thermostat
Electrical 120V, 60 Hz plug-in; dedicated 110-120V, 15 A grounded outlet
Flame Hybrid-FX flame technology, low energy LED, 10 flame colors
Media Driftwood logs and acrylic crystal ember bed
Controls 6-button control panel with digital thermostat readout, timer, remote control
Trim 5/8 in. and 1-5/8 in. trim included

Dimensions and Cutout

With 5/8 in. trim 52 in. W x 33 in. H x 12 in. D
With 1-5/8 in. overlap trim 54 in. W x 35 in. H x 12 in. D
Firebox 50-11/16 in. W x 32-5/8 in. H x 11-3/8 in. D
Framed opening 50-15/16 in. W x 32-3/4 in. H x 12 in. D
Depth needed 10 to 12 in. of wall depth, or an existing zero clearance wood-burning firebox

Features

  • Slides into an existing zero clearance wood-burning fireplace or builds into a new wall
  • Hybrid-FX flame technology in an enlarged vertical viewing area
  • 10 flame colors with independent ember bed and downlighting
  • Hand painted driftwood logs and acrylic crystal ember bed
  • Variable heat with thermostat and timer
  • Plugs into a standard 120V outlet
  • Remote control included
  • Both 5/8 in. and 1-5/8 in. finish trims in the box

What Is Included and What You Will Need

  • Included: fireplace, remote control, logs, acrylic crystal media, and 5/8 in. and 1-5/8 in. trims
  • Optional: TruWood premium large timber kit
  • Needed: a dedicated 110-120V, 15 A grounded outlet in the opening
  • Needed for a new wall: a framed opening 50-15/16 in. W x 32-3/4 in. H x 12 in. D

Installation Notes

For a new wall, frame a finished opening of 50-15/16 in. W x 32-3/4 in. H x 12 in. D with an outlet inside; for an insert install, slide it into an existing zero clearance wood-burning fireplace. Plug it into a dedicated 110-120V, 15 A grounded outlet. Modern Flames provides do-it-yourself installation instructions, and we install it across NYC and Long Island. Electric fireplaces need no gas line or venting, which makes them one of the simplest fireplace options for New York City apartments and co-ops, subject to building and board approval for the electrical work. Book a free design consultation and we will help you plan the layout, utilities and installation.

Documentation

Frequently Asked Questions

Can it go into my existing wood-burning fireplace?

Yes. Modern Flames designed it to slide into an existing zero clearance wood-burning fireplace. Measure the opening first; the 54 needs a 50-15/16 in. x 32-3/4 in. space and 12 in. of depth.

Does it need hard-wiring?

No. It plugs into a dedicated 110-120V, 15 A grounded outlet.

Which trim should I use?

Both are in the box: the 5/8 in. trim for a tight built-in finish, or the 1-5/8 in. overlap trim, which laps further over the edge of the opening.

How much heat does it give?

Up to 5,000 BTU from a 1,465 W heater with a thermostat, for supplemental room heat.

Related reading: Electric Fireplace Buying Guide and How to Measure a Fireplace Opening.

Warranty

Modern Flames limited warranty: 5 years from the date of purchase when the product is registered with Modern Flames, or the standard 2 years if it is not registered. If the product has an integrated screen, the screen is covered for 1 year, and the warranty includes a labor credit for one service in the first year. Coverage applies only to products bought through an authorized Modern Flames dealer, is not transferable, and does not extend to consumable service parts.

Register your product with Modern Flames at modernflames.com/product-registration to receive the longer 5 year coverage, and read the full Modern Flames limited warranty (PDF) for complete terms.

From our project portfolio

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Think beyond the appliance

Build your complete setup

Choose the level of help you need. We’ll confirm the exact model, compatible parts and a clear quote before you commit.

01

The appliance

Know your model and configuration? Shop the appliance and review exactly what is included.

02

The complete setup

Ask us to pair the appliance with the correct trim, venting, cover, cart or other model-specific accessories.

03

The installed project

For projects within our service area, ask for a quote covering product selection, compatible components and installation.

These are planning options, not pre-priced bundles. Accessories, delivery and installation are separate unless your written quote includes them.

Buy with the whole project in mind

Make sure this model fits your project

A few details now can help you avoid ordering the wrong size, fuel type or installation components.

  1. 1. Confirm fit

    Check finished dimensions, opening or cutout measurements and the manufacturer’s required clearances.

  2. 2. Match the fuel and connections

    Confirm the exact model’s fuel type, electrical requirements and any venting or ventilation requirements.

  3. 3. Complete the setup

    Check what is included. Ask us to quote compatible accessories, delivery and installation separately where needed.

See the work. Hear from customers.

Explore completed installations and independent Google reviews to learn about working with NYC Fireplaces & Outdoor Kitchens.

Questions to settle before you order

How do I know which size and configuration to order?

Have your dimensions, photos, fuel or power details and preferred model ready. Contact our showroom before ordering if fit or compatibility is unclear. Follow the manufacturer’s installation instructions.

Does the price include everything I need?

Check the product description and selected configuration for included parts. Venting, trim, surrounds, covers, carts, fuel and installation may be separate. Ask for a complete quote before purchasing.

Can you deliver and install it?

Delivery and installation depend on your address and the product. Review our shipping policy and call for an installation quote. Confirm availability and timing before booking work. Read shipping details. Read return terms.

Product, accessory and installation prices are separate unless the offer explicitly includes them. Compatibility must be confirmed for the exact model.