Optional log presentation for this RGB cassette.
Details
The media tray is included; this decorative log set is sold separately.
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Dimplex
Dimplex Optimyst RGB Cassette
From $2,299.99
Dimplex · Optimyst RGB Cassette
Dimplex Optimyst RGB 20-Inch Water-Vapor Cassette
The CDFI500-PRO-RGB is a design component for a custom fireplace, with Optimyst water-vapor flames, five flame-color choices and adjustable crackling sound. Multiple cassettes can be linked for a longer installation, while the included media tray leaves the final ember-bed treatment to the project.
$2,299.99
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Complete your setup
Optional power cord for the selected connection.
Details
Confirm the intended electrical connection against the cassette manual.
View product detailsYour setup · 0 extras$2,299.99
RoleCustom fireplace component
Flame colors5 RGB choices
Air inlet40 in² per cassette
HeatFlame effect; no heater
BUILD A FIREPLACE AROUND YOUR VISION
The flame line is just the beginning.
The CDFI500-PRO-RGB is the flame-producing component for a custom fireplace. Its open presentation supports see-through, three-sided and open-concept designs, with linked cassettes available for a longer installation.
The finished enclosure is part of the project, not part of this cassette SKU. Plan the cassette count, air intake, water arrangement and access together before choosing the final decorative treatment.
SEE THE FLAME IN MOTION
Let the color set the mood.
Watch the RGB cassette’s moving water-vapor flame. The video shows the flame presentation; enclosure design, media and water arrangements remain specific to your project.
LET THE ROOM SET THE MOOD
Five colors. A different kind of evening.
Choose natural orange, blue, violet, red or aquamarine. Optimyst® uses water vapor and light to create the moving flame effect, while adjustable crackling sound lets you add or reduce the audible atmosphere.
The Bluetooth remote and FlameConnect Phone App provide supported control over color, intensity and sound. Supplied blockers and slotted spacers let the installation’s flame width and pattern be tailored as part of setup.
MAKE THE FINISH YOUR OWN
A media tray—not a finished ember bed.
The media tray is supplied, while the decorative ember bed is selected separately. The documented optional log set gives the cassette a more traditional presentation; a custom treatment needs to follow the cassette’s installation requirements.
Do not assume that every decorative image shows the contents of the carton. The optional power cord and optional log set are separate choices, while the remote, water container, filter and included plumbing kit already belong to this model’s package.
PLAN FOR THE EVERYDAY
Water care belongs in the design.
Choose a refillable-container arrangement or the permitted plumbed connection before enclosing the cassette. The manual includes a water container, inline filter and plumbing kit; a separately sold copper-pipe accessory is a different item.
The manual requires regular cleaning of the top cover, sump, water container and transducers at least monthly, with more frequent care depending on water quality. Keep the air filter and water components accessible, and empty water-containing parts before moving the cassette.
MEASURE ONCE. ENJOY FOR YEARS.
Build the enclosure around the whole system.
The cassette is approximately 20 inches wide, 12 inches deep and 9½ inches high. Those are component dimensions, not a finished enclosure cutout. Each cassette requires at least 40 square inches of fresh-air inlet with a path to its underside.
| Component width | 20 in |
|---|---|
| Component depth | 12 in |
| Component height | 9½ in |
| Fresh-air inlet | 40 in² minimum per cassette |
| Electrical rating | 120 V · 230 W |
| Water arrangements | Refillable container or documented plumbed connection |
Longer designs need a system plan
For linked cassettes, scale the intake requirement by cassette count. The manual calls for a manifold-style plumbed configuration to maintain consistent water volume and pressure.
Keep maintenance within reach
Allow access to the top cover, sump, transducers, water container and filter. A permanently sealed decorative enclosure would make the prescribed cleaning and service difficult.
WHAT ARRIVES WITH YOUR FIREPLACE
The right pieces, clearly accounted for.
| In the box | Contents & quantities |
|---|---|
| Cassette & controls | 1 cassette · 1 remote · instruction manual |
| Water equipment | 1 refillable water container · 1 inline filter · 1 plumbing kit |
| Flame shaping | 2 flame blockers · 3 slotted flame spacers |
| Service supplies | 3 transducers total, including 2 installed · 3 replacement leak-detector pads |
YOUR SELECTED CONFIGURATION
Know exactly what you’re bringing home.
Product specifications
- Manufacturer model
- CDFI500-PRO-RGB
- Ordering number
- 500004172
- UPC
- 781052152670
Installation & operation
- Component width
- 20 in
- Component depth
- 12 in
- Component height
- 9½ in
- Fresh-air inlet
- 40 in² minimum per cassette
- Electrical rating
- 120 V · 230 W
- Water arrangements
- Refillable container or documented plumbed connection
GOOD QUESTIONS. USEFUL ANSWERS.
Let’s get your project right.
Am I buying a complete fireplace or the flame-producing component?
This SKU is the cassette component. It does not include a finished surround or cabinet. Plan the enclosure, cassette count, permitted media, air intake, electrical connection and water arrangement as one installation before ordering the finishing materials.
Does this cassette provide room heat?
The CDFI500-PRO-RGB is a 120-volt, 230-watt flame-effect cassette without a heater. Its role is the water-vapor flame presentation. Do not use the wattage as a heating-output specification or assume that Optimyst Linear heater features apply to this component.
How much ventilation does one cassette need?
The manual requires a fresh-air inlet of at least 40 square inches per cassette, with a path for air to reach the underside. Multiply that minimum by the cassette count for a linked design and account for the free area of any grille or concealed opening.
Is the decorative ember bed already supplied?
The tray is included, but the decorative ember bed is not. The documented optional log set is sold separately. Choose media for this exact cassette arrangement; the appearance in an installation photograph is not a bill of materials for the carton.
Can I connect several cassettes for a longer fire?
The product supports linked cassettes for custom lengths. Plan the complete enclosure and access first. For plumbed multi-unit installations, the manual specifies a manifold-style arrangement to provide consistent water volume and pressure rather than treating one cassette’s connection detail as the whole system.
Which water equipment would I otherwise risk buying twice?
The package already includes a refillable water container, inline filter and plumbing kit. The separate copper-pipe accessory is a different connection item. Resolve the intended site connection before selecting additional water hardware.
What cleaning should I allow access for?
At minimum once a month, the manual calls for cleaning the top cover, sump, refillable container when used, and transducers with soap and water. Water quality may require more frequent care. Air filters also need access for rinsing and drying; do not put the components in a dishwasher.
What happens when a refillable container runs empty?
The flame effect shuts off and the LEDs blink twice every eight seconds. Turn the power switch off before refilling, use the water quality guidance in the manual and avoid overtightening the cap. An accessible container makes this routine much easier.
Can I change the color from my phone?
Yes. This RGB cassette supports FlameConnect Phone App control and includes a Bluetooth remote. The listed color choices are natural orange, blue, violet, red and aquamarine. Keep RGB-specific controls separate from instructions for the older non-RGB cassette.
Will an enclosure made for the old CDFI-PRO automatically fit this model?
Do not assume it will. Legacy CDFI-BX1000 and CDFI-BX1500 enclosure eligibility does not carry over to the RGB cassette. Use the RGB installation drawing and an explicitly compatible enclosure arrangement, including water, air intake and service access.
RATINGS & OWNER INSIGHTS
A closer look at the Optimyst RGB Cassette.
What owners report. What our research finds.
Optimyst RGB Cassette family
OUR PRODUCT ASSESSMENT
Hearth Outpost Score
8.0/10
The RGB Cassette is a building block for a custom fire feature rather than a complete fireplace or room heater. We like its freedom of layout and the way moving vapor can create a flame effect visible from several directions. The newer controls and color options add flexibility, while the supplied filter helps the water system. Choose it with a clear plan for the enclosure, refilling or plumbing, airflow and cleaning. The best installation is one you can easily maintain after the room is finished.
See the score breakdown
Performance8.4
Build quality & materials8.0
Design & finish8.7
Features & capability8.8
Ease of ownership6.7
Durability & reliability6.8
Warranty & support7.4
What stands out
Freedom to design
Modular cassettes can support a custom-length feature when installed and linked as specified. Because this is the flame engine rather than a finished surround, it suits projects where the designer wants control over the visible opening and materials around it.
More control over the effect
RGB lighting, sound and app control allow a wider range of presentations than the earlier amber-only system. A refillable tank or the specified continuous-water connection provides two ownership approaches. The supplied water filter is useful, but it does not remove the cleaning routine.
What to weigh before buying
It does not heat the room
This cassette has no heater. Select it for atmosphere and arrange any room heating separately. Treat the electrical and water requirements as part of the design brief, rather than discovering them after the enclosure has been built.
Plan access and compatibility
Tanks, transducers and water-contact parts must remain reachable. The RGB model has revised controls, legs and internal parts and is not compatible with legacy Pro Box housings. Confirm the exact cassette, enclosure and optional power-cord arrangement before combining components.
Value Consideration
The value is in design freedom and the vapor effect, not heating output. Compare the complete project with a packaged Pro Box or an LED fireplace before choosing loose modules. A custom arrangement can be worthwhile, but the budget should include enclosure work and the practical ability to clean or service every cassette without dismantling the feature.
Sources & Methodology
About our research
The family assessment pools sizes, fuel types, generations and colors. Equipment differs by configuration. The HOP score is a price-independent research assessment. Owner themes summarize the accessible sample.
Research updated October 29, 2026.
Reviews & Ratings MethodologyCONFIDENCE BEYOND THE FIRST FIRE
Made to enjoy. Backed for the years ahead.
Two-year limited coverage supports the cassette’s materials and workmanship. Eligible first-year claims include repair or replacement with in-home service; the second year provides covered replacement parts.
Manuals & documents
Optimyst RGB cassette installation, use & care manual CDFI500-PRO-RGB product overview CDFI500-PRO-RGB architectural specifications Optimyst collection brochure Dimplex fireplace collection catalog RGB and original Optimyst cassette comparison CDFI500-PRO-RGB remote control guideA real person. Useful advice.
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We can help you map cassette count, water supply, media and enclosure requirements before ordering components.
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The Dimplex story
A different way to bring fire home.
Dimplex’s electric-flame story includes the original Optiflame® effect, introduced in 1988. Its continued development of electric fire experiences includes Optimyst® water-vapor technology, which combines cold water vapor and light to create a moving flame illusion.
Part of the Glen Dimplex Group, the brand offers electric fireplace designs for residential, commercial and hospitality spaces. At Hearth Outpost, explore the different forms, flame technologies and installation approaches to find the one that belongs in your project.
Visit the Dimplex Shop by Hearth Outpost