Dimplex
From $6,349.99
Dimplex · Optimyst Linear
Optimyst® water-vapor flame brings movement, color and adjustable crackling sound to a sealed-glass linear fireplace. OLF46-AM combines included driftwood and acrylic media with app control and supplemental heat. Plan a continuous water connection and the required fresh-air intake as part of the installation.
In Stock
Optional alternative to the included media.
1 pack for this fireplace
$80.99 per pack
This fireplace uses 1 retail pack of river rocks. Choose these to change the decorative appearance; standard fireplace media is already included. Follow the installation guide’s media-placement instructions.
View product details
Optional alternative to the included media.
1 pack for this fireplace
$80.99 per pack
This fireplace uses 1 retail pack of black rocks. Choose these to change the decorative appearance; standard fireplace media is already included. Follow the installation guide’s media-placement instructions.
View product detailsA NEW WAY TO GATHER AROUND THE FIRE
Optimyst® combines illuminated water vapor with multicolor LEDs to create a flame-and-smoke illusion. Behind the sealed glass, the display becomes a changing focal point for a dining room, living space or bedroom.
Begin with a familiar amber glow or explore custom colors. Adjustable crackling sound adds another layer to the experience, and the heater can stay off when you only want the flame.
MAKE THE FIRE YOUR OWN
Control individual lights and mix colors to give the vapor flame a different character. Adjustable flame baffles shape the flame pattern, while the supplied driftwood and acrylic crystals let you choose the media presentation.
FlameConnect Phone App compatibility brings flame intensity, color, sound and heat settings to your phone. A physical remote is included, so the everyday controls are not dependent on reaching for a phone.
THE DETAILS BEHIND THE DISPLAY
The enclosure needs a fresh-air path to the underside of the fireplace. For OLF46-AM, the manual specifies 80 square inches of inlet area. A grille reduces free area, so the opening may need to be larger to compensate.
The sealed front glass does not make the installation airtight. Plan intake openings before framing and drywall, keep the appliance level, and maintain access for the water shutoff and service.
SETTLE IN FOR THE LONG RUN
The installation guide specifies a continuous cold-water connection using standard ¼-inch outside-diameter tubing. The optional CDFIPLUMB-KIT is a copper-pipe connection accessory; it is not a reason to assume that the fireplace includes refillable tanks.
Normal tap water is permitted. Hard water may require a softener and more frequent cleaning; unfiltered well water or another unmonitored supply is not recommended. Keep the water shutoff accessible for scheduled maintenance. The pull-out QR label helps you find product support.
MEASURE ONCE. ENJOY FOR YEARS.
Frame OLF46-AM with a minimum width of 48 inches, a height of 32½ inches and a minimum depth of 12 inches. The finished drywall opening is a separate measurement: 46³⁄₁₆ inches wide by 17½ inches high.
| Minimum framing width | 48 in |
|---|---|
| Framing height | 32½ in |
| Minimum framing depth | 12 in |
| Drywall opening | 46³⁄₁₆ W × 17½ H in |
| Required fresh-air inlet | 80 in²; airflow to underside |
| Water connection | Continuous cold-water supply |
Electrical entry is at the top-right rear; the water connection is at the bottom-left rear. Keep access to the water shutoff and avoid loading the top of the firebox with building materials.
Overall appliance measurements are not the framing opening. Follow the selected model’s installation guide for the opening, intake and finishing details.
WHAT ARRIVES WITH YOUR FIREPLACE
| In the box | Contents & quantities |
|---|---|
| Fireplace assembly | 1 firebox · 1 front glass |
| Media collection | 8 driftwood pieces · 2 bags small acrylic crystals · 1 bag(s) large crystals · 1 bag(s) extra-large crystals |
| Flame shaping | 4 breakable baffles · 6 slotted baffles |
| Controls | 1 remote · 2 supplied 3 V batteries |
| Care & handling | 2 spare transducers · 2 suction cups |
| Installation | 1 bubble level · 4 wood screws · installation guide |
YOUR SELECTED CONFIGURATION
GOOD QUESTIONS. USEFUL ANSWERS.
The reviewed OLF46 installation guide specifies a continuous cold-water connection using standard ¼-inch outside-diameter tubing. Plan the water route and accessible shutoff before enclosing the fireplace. The optional copper-pipe connection kit is different from a refillable-tank system.
The vapor system needs fresh air to reach the underside of the appliance. OLF46-AM requires 80 square inches of inlet area. Omitting the inlet can impair the flame and damage the fireplace. A grille reduces open area, so account for its obstruction when sizing the opening.
Provide both sets: framing is at least 48 inches wide by 32½ inches high by 12 inches deep, while the drywall opening is 46³⁄₁₆ by 17½ inches. The appliance’s overall dimensions are a third set. The installer also needs the intake and service-access details from the manual.
Yes. The water-vapor flame effect operates independently of supplemental heat, and the crackling sound has adjustable volume. This lets you use the fireplace for atmosphere in warmer weather. Choose supported flame, heat and sound settings with the controls or FlameConnect Phone App.
The manual permits normal tap water. In hard-water areas it recommends a softener and notes that more frequent cleaning may be needed. Unfiltered well water and other unmonitored supplies are not recommended. Water quality and regular maintenance both affect the vapor system.
The plumbing connection needs access so the water can be shut off during scheduled maintenance. Resolve that access with your installer before wall finishing. An attractive enclosure should still allow the service steps required for the fireplace.
The troubleshooting guide associates fogging with excess humidity. It directs owners to use Extractor Fan Boost and, if fogging persists, reduce flame intensity. Use the model’s operation and troubleshooting sections rather than treating condensation as a reason to change the enclosure or block airflow.
The troubleshooting guide notes that an open FlameConnect Phone App on a mobile device can prevent remote commands. Close the app on all mobile devices before trying the remote again. Battery condition and remote syncing are separate checks described in the manual.
Some variation between modules is normal, and the manual allows 10–15 minutes after startup for flame height to stabilize. Persistent performance issues may call for cleaning or transducer service. Keep that distinction in mind before changing the flame baffles or water arrangements.
Bathroom installation needs GFCI protection and placement that prevents water from entering the appliance. The fireplace is not watertight and must be kept away from showers, tubs and places where it could fall into water. Have your installer review the exact location and electrical requirements.
RATINGS & OWNER INSIGHTS
What owners report. What our research finds.
Optimyst Linear Water Vapor Fireplace family
EXTERNAL CUSTOMER FEEDBACK
OUR PRODUCT ASSESSMENT
Optimyst Linear makes the strongest case when you want a broad, moving fire effect to be a permanent feature of the room. We like the combination of vapor, a finished glass-front format and supplied media that gives the installation a clear visual direction. This range needs a continuous water connection, so it belongs in the project plan early. Set aside room for servicing and regular cleaning as carefully as you plan the face of the fireplace; those details determine how enjoyable it will be to own.
Owners describe the installed fireplace as a strong living-room focal point and appreciate the realism of the effect. Several report an installation that went more smoothly than expected. Those positive accounts support the visual appeal, while the practical buying decision still rests on whether your project can accommodate the water connection and maintenance access.
The long viewing area and physically moving mist can create a different impression from a flat flame display. The included crystal and driftwood media provide the intended starting arrangement without immediately requiring a separate decorative-media purchase.
A correctly installed continuous cold-water connection changes the daily routine compared with refillable vapor models. That can be useful in a fireplace used frequently, but it is a plumbing commitment rather than a maintenance-free feature. Water-contact parts still need attention.
The water line, electrical supply and the ability to reach internal components need to be coordinated before the wall is closed. Avoid treating it as a plug-in insert that can be pushed into any opening. The larger sizes also need careful handling and a suitable supporting structure.
Regular cleaning and attention to the prescribed water requirements are part of keeping the effect consistent. Confirm the warranty and local service arrangements in writing before purchase, including who can reach the installed components and what work is covered. That is especially important for a fireplace built into a finished wall.
The extra investment is most defensible when the vapor effect is a central part of the room and the project already allows for water and service access. Compare the installed cost, not just the fireplace price. A simpler LED linear unit is likely to suit someone who wants a striking wall feature with less ongoing attention.
The 4.3/5 Market Rating is based on 3 eligible customer ratings reviewed by Hearth Outpost. The star breakdown distribution shows how those customers rated the product. These are aggregated customer reviews across the market and not random sampling.
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
Optimyst Linear carries two-year limited warranty coverage, with on-site or in-home service for eligible claims. Covered repairs address defects in materials and workmanship under the written warranty.
A real person. Useful advice.
We can help you plan water supply, fresh-air access, electrical connection and service access as one installation.
From our outpost to your home
The Dimplex story
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 OutpostRATINGS & OWNER INSIGHTS
What owners report. What our research finds.
Optimyst Linear Water Vapor Fireplace family
EXTERNAL CUSTOMER FEEDBACK
OUR PRODUCT ASSESSMENT
Optimyst Linear makes the strongest case when you want a broad, moving fire effect to be a permanent feature of the room. We like the combination of vapor, a finished glass-front format and supplied media that gives the installation a clear visual direction. This range needs a continuous water connection, so it belongs in the project plan early. Set aside room for servicing and regular cleaning as carefully as you plan the face of the fireplace; those details determine how enjoyable it will be to own.
Owners describe the installed fireplace as a strong living-room focal point and appreciate the realism of the effect. Several report an installation that went more smoothly than expected. Those positive accounts support the visual appeal, while the practical buying decision still rests on whether your project can accommodate the water connection and maintenance access.
The long viewing area and physically moving mist can create a different impression from a flat flame display. The included crystal and driftwood media provide the intended starting arrangement without immediately requiring a separate decorative-media purchase.
A correctly installed continuous cold-water connection changes the daily routine compared with refillable vapor models. That can be useful in a fireplace used frequently, but it is a plumbing commitment rather than a maintenance-free feature. Water-contact parts still need attention.
The water line, electrical supply and the ability to reach internal components need to be coordinated before the wall is closed. Avoid treating it as a plug-in insert that can be pushed into any opening. The larger sizes also need careful handling and a suitable supporting structure.
Regular cleaning and attention to the prescribed water requirements are part of keeping the effect consistent. Confirm the warranty and local service arrangements in writing before purchase, including who can reach the installed components and what work is covered. That is especially important for a fireplace built into a finished wall.
The extra investment is most defensible when the vapor effect is a central part of the room and the project already allows for water and service access. Compare the installed cost, not just the fireplace price. A simpler LED linear unit is likely to suit someone who wants a striking wall feature with less ongoing attention.
The 4.3/5 Market Rating is based on 3 eligible customer ratings reviewed by Hearth Outpost. The star breakdown distribution shows how those customers rated the product. These are aggregated customer reviews across the market and not random sampling.
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 Methodology
