Home Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette.
Vendor: Dimplex

Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette

Regular price $2,988.70 Sale price $2,299.00
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Model / SKU CDFI500-PRO-RGB
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Specifications

Brand
Dimplex
SKU
CDFI500-PRO-RGB
Flame technology
Multicolor flame
Certification
UL listed

Every row above is published in our Shopify product data for the selected variant. Dimensions, cut-out sizes and electrical or gas requirements vary by model; confirm them against the manufacturer documents below before framing, wiring or plumbing.

Product detail

About this fireplace

Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette

The Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette creates a highly realistic fireplace experience using water vapor and light to produce a lifelike 3D flame and smoke effect. Designed for custom built-in fireplace installations, luxury feature walls, commercial spaces, and modern residential interiors, this compact cassette gives homeowners, designers, and builders the ability to create a dramatic fireplace display without gas, venting, smoke, ash, or traditional fireplace maintenance.

Unlike standard electric fireplaces that rely on flat flame projections, the Dimplex Opti-Myst 500 uses ultrasonic water vapor technology to create a moving flame illusion that rises naturally from the cassette. The result is a dimensional, elegant, and realistic fire effect that brings visual warmth and atmosphere to the space without producing traditional room heat.

Explore more premium fireplace options in our fireplaces collection.

Realistic Water Vapor Flame Technology

The Opti-Myst 500 is built around Dimplex’s signature Opti-Myst water vapor flame effect. Using water and light, the cassette creates the appearance of real flames and smoke without actual combustion. This makes it a beautiful alternative for spaces where a gas or wood-burning fireplace may not be practical.

The flame effect has a natural, three-dimensional look that can be viewed from multiple angles, making it especially effective in open fireplace designs, see-through installations, linear fireplace builds, and custom architectural features.

Compact 20-Inch Cassette For Custom Fireplace Builds

At approximately 20 inches wide, the Dimplex Opti-Myst 500 cassette is ideal for compact custom fireplace openings, smaller water vapor fireplace features, or modular fireplace designs where multiple cassettes are placed together to create a longer flame display.

Dimplex’s modular cassette design allows the 20-inch Opti-Myst 500 to be combined with compatible Opti-Myst cassette units to create a custom fireplace length. This makes it a strong option for luxury homes, restaurants, hotels, lounges, reception areas, and commercial interiors that need a highly customized flame feature.

No Traditional Heat Output

The Dimplex Opti-Myst 500 is designed primarily for visual ambiance and does not function as a traditional room heater. This makes it ideal for projects where the goal is to create a dramatic fireplace effect without adding warmth to the space.

Because the flame effect is created with water vapor instead of combustion, this fireplace cassette requires no chimney, gas line, venting, wood, or fuel storage. It offers the beauty of a real-looking flame with the clean simplicity of electric operation.

Ideal For Residential & Commercial Design Projects

The Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette is well suited for both residential and commercial applications. Its compact size, realistic flame effect, and flexible built-in design make it a strong choice for custom fireplace walls, entertainment areas, restaurant interiors, hotel lobbies, lounges, luxury living rooms, and modern office environments.

For designers and builders, this cassette gives more creative freedom than a traditional fireplace. It can be used in open-concept layouts, contemporary room dividers, see-through fireplace concepts, or long linear installations when paired with additional compatible cassette units.

Remote Control Convenience

The Dimplex Opti-Myst 500 includes remote control operation for simple everyday use. Adjust the flame effect and enjoy the look of a real fire at the touch of a button. The water reservoir is designed for convenient refilling, allowing the cassette to create hours of realistic flame ambiance before more water is needed.

Why Choose the Dimplex Opti-Myst 500 Cassette?

  • 20-inch water vapor fireplace cassette: Ideal for compact custom fireplace features and modular flame designs.
  • Opti-Myst flame technology: Uses water vapor and light to create a realistic 3D flame and smoke effect.
  • No traditional heat output: Designed for ambiance without adding room heat.
  • Modular installation: Can be paired with compatible Opti-Myst cassettes for longer custom fireplace designs.
  • Realistic flame movement: Produces a natural rising flame effect that feels dimensional and lifelike.
  • No venting required: No gas line, chimney, smoke, ash, or wood storage needed.
  • Custom design flexibility: Great for see-through, open, linear, and built-in fireplace applications.
  • Remote control operation: Allows simple fireplace control from across the room.
  • Residential and commercial use: Suitable for homes, hotels, restaurants, lounges, offices, and luxury interiors.
  • Low-maintenance electric operation: Uses electricity and water to create the flame effect.

Ideal For

  • Custom fireplace walls
  • Modern living rooms
  • Luxury residential interiors
  • See-through fireplace designs
  • Open-concept fireplace features
  • Restaurants and lounges
  • Hotels and hospitality spaces
  • Commercial reception areas
  • Designer fireplace installations
  • Warm climates where heat is not needed

Approximate Product Specifications

  • Product Type: Built-in water vapor fireplace cassette
  • Model: CDFI500-PRO / Opti-Myst Pro 500
  • Installation: Built-in cassette / custom fireplace installation
  • Approximate Size: 20-inch cassette
  • Approximate Dimensions: 20" W x 9.5" H x 12" D
  • Flame Technology: Opti-Myst water vapor flame effect
  • Heat Output: No traditional room heat
  • Voltage: 120V
  • Wattage: Approximately 230W
  • Controls: Remote control
  • Finish: Black
  • Use: Indoor residential or commercial applications
  • Warranty: 2-year limited manufacturer warranty

A Designer Fireplace Effect Without Gas Or Venting

The Dimplex Opti-Myst 500 20-Inch Water Vapor Fireplace Cassette is a premium solution for creating realistic fireplace ambiance in spaces where a traditional fireplace is not practical. Its water vapor flame effect, compact cassette design, and modular installation flexibility make it ideal for custom design projects that need visual impact without heat, venting, or combustion.

Whether you are designing a luxury living room, modern commercial lounge, hotel lobby, restaurant feature wall, or custom see-through fireplace, the Opti-Myst 500 gives you the visual drama of a real-looking flame with the clean simplicity of electric water vapor technology.

Shop more premium fireplace options in our fireplaces collection.

Before you buy

Installation, delivery and project planning

Installation responsibility

Resideterra supplies the fireplace; installation is arranged by you or your contractor. Electrical, gas or plumbing work should be completed by a licensed trade in line with the manufacturer installation manual and your local code. We do not provide installation labor.

Shipping and delivery

Orders are processed in 1–3 business days. After shipment, standard transit is typically 2–7 business days. Shipping is free on U.S. orders of $100 or more; orders from $0.01–$99.99 have a $14.99 shipping charge. Tracking is emailed as soon as the order ships. Large items may arrive by freight: the carrier will contact you to schedule delivery, and an adult signature is required. Inspect all packaging before signing and note any visible damage on the delivery receipt.

Warranty and support

Warranty coverage is provided by the manufacturer and is stated in the product documentation. For claims or questions, contact us at sales@resideterra.com or +1-888-989-1337 (Mon-Sat, 9:00 AM - 6:00 PM EST).

Returns and order changes

Eligible standard items may be returned within 30 days when unused, unassembled and in their original packaging. Return authorization is required before sending anything back. Customer-requested returns may be subject to return shipping and restocking fees. Freight, custom, made-to-order and brand-restricted products may have different or final-sale terms, so confirm eligibility with our team before ordering if you are uncertain.

Technical library

Documents and downloads

No manufacturer documents are published for this product yet. Request the installation manual and specification sheet at sales@resideterra.com.

Buyer questions

Frequently asked

Where do I find the installation documents?
Available manuals and specification sheets are listed in the Documents and downloads section above. Contact sales@resideterra.com when a manufacturer document is not yet published.
How is availability determined?
Availability is read from the selected Shopify variant. Manufacturer supply can change, so a specialist can confirm timing before you place a time-sensitive order.
How do I get project help before I buy?
Call +1-888-989-1337 or use the specialist link above. Our team can review sizing, installation type and project requirements before you order.
How does checkout work?
Choose the exact variant and quantity, then add it to your Shopify cart. Taxes, freight when applicable and available payment options are confirmed during checkout.