





Dimplex Optimyst® Pro 500 20" Built-In Electric Cassette
Dimplex Optimyst® Pro 500 20" Built-In Electric Cassette
Description
Picture the perfect fireplace: any length, any location, and any number of sides. Forget about venting, gas lines and hot glass, because they are a thing of the past. Now imagine flames made of water that you can reach out and touch. The revolutionary Opti-Myst by Dimplex reinvents the electric fireplace and makes it easier than ever to add a dramatic fire feature to any space. See-through, three-sided, open concept, the possibilities are endless, so go ahead, play with fire. Opti-Myst’s revolutionary technology uses water vapor to reflect light particles. This creates the breathtaking flame and smoke effect.
This stunning unit uses the same patented Opt-Myst technology that utilizes water vapor and a unique combination of lighting effects to create the realistic illusion of a real wood burning and smoking fire. Customize the flame appearance with adjustable heights and widths using the included spacers. For even more realism, this Opti-Myst cassette features adjustable volume crackling fire sound effects that brings the entire fire illusion full circle. Easily build the unit into a wall or a custom mantel and direct-wire the unit to a 120V circuit. A new feature with this unit is that multiple sets can be connected to create the appearance of an even larger fireplace, making the applications of this unit virtually limitless. Additionally, the CDFI500P has an optional plumbing kit which would allow you to directly connect the unit or units to a singular water supply, eliminating the need to refill the water reservoir.
Features
- Revolutionary ultrasonic technology produces a fine mist to create the illusion of flames and smoke - most authentic fireplace experience
- Multiple 20" or 40" cassettes can be combined in tandem to achieve the desired length for dramatic linear installations
- Includes spacers and slots for customizable flame width and pattern
- Control the desired volume of flame to your liking
- Included water tank fills up with tap water and enjoy up to 8 hours of continuous flames
- Enjoy a more complete sensory experience with the sound of a natural wood fire crackling
- Direct wire installation
- Heat Output is optional - not included
- Includes flat plate that supports custom media
- Control the flames and crackling sound effects with included remote
- Fueled by water - costs only pennies per hour
- Optional inner glow logs also available
- Optional plumbed water supply kit provides continuous operation without refilling water tanks
Product Specifications
Dimplex Optimyst® Pro 500 20" Built-In Electric Cassette Product Specifications
| PRODUCT SPECS | |
|---|---|
| Brand | Dimplex |
| Finish/Color | Black |
| Media Bed |
|
| Installation | Built-In |
| Weight |
|
| Heat Location | Heat Optional Add-On |
| Warranty | 2 Year |
| Remote Control | On / Off |
| ELECTRICAL SPECS | |
|---|---|
| Volts | 120V |
| Amps / 3.83 |
|
| Watts |
|
| Wiring | Hard Wire |
| Bulb Type | LED |
| BTUs |
|
| Heating Area | N/A |
| Certification | ![]() |
IMENSIONS:
Fireplace Dimensions: 20" W x 9" H x 12" D

Product Manual
Dimplex Installation Manual
Dimplex Owners Manual
Dimplex Sell Sheet Accessory
Product Warranty
Dimplex Product Warranty
Your purchase is covered by the Manufacturer’s Limited Warranty. View full Manufacturer Limited Warranty below.
Dimplex Warranty
Return Shipping
The consumer is responsible for all “Product Return Shipping” carrier fees, except if the unit is defective, damaged upon receipt or if the wrong product is shipped. We will cover the return shipping costs directly seven (7) days after delivery if the product was delivered damaged, seven (7) days after delivery if the wrong product was shipped from Glen Dimplex Americas or thirty (30) days after delivery for concealed damage or defective.
The consumer will be responsible for all “Product Return Shipping” carrier fees relating to buyer’s remorse or if the consumer ordered the incorrect model and require a replacement. A 25% restocking fee will apply.
Product FAQs
Dimplex Product FAQs
How do I know what part I need for my Dimplex unit?
Troubleshooting Guides and Replacement Parts lists are located in the Parts and Service Manual which is included in the original packaging along with the product. If this is lost or misplaced, these manuals can be found by entering the model number found on the unit in the search field in the Product Downloads section. If you have any questions, you can email our customer service team. Please include your model number and serial number so we can assist you quickly and efficiently.
How do I tell if my existing unit is a Dimplex unit?
Most Dimplex fireplaces say Dimplex on them somewhere. Other brand names we have sold under were Electrolog, Symphony, and Optiflame. If you need some assistance you may Contact Us.
Please have your model number and serial number available so we can assist you efficiently.
Original: $2,129.99
-65%$2,129.99
$745.50Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Dimplex Optimyst® Pro 500 20" Built-In Electric Cassette
Description
Picture the perfect fireplace: any length, any location, and any number of sides. Forget about venting, gas lines and hot glass, because they are a thing of the past. Now imagine flames made of water that you can reach out and touch. The revolutionary Opti-Myst by Dimplex reinvents the electric fireplace and makes it easier than ever to add a dramatic fire feature to any space. See-through, three-sided, open concept, the possibilities are endless, so go ahead, play with fire. Opti-Myst’s revolutionary technology uses water vapor to reflect light particles. This creates the breathtaking flame and smoke effect.
This stunning unit uses the same patented Opt-Myst technology that utilizes water vapor and a unique combination of lighting effects to create the realistic illusion of a real wood burning and smoking fire. Customize the flame appearance with adjustable heights and widths using the included spacers. For even more realism, this Opti-Myst cassette features adjustable volume crackling fire sound effects that brings the entire fire illusion full circle. Easily build the unit into a wall or a custom mantel and direct-wire the unit to a 120V circuit. A new feature with this unit is that multiple sets can be connected to create the appearance of an even larger fireplace, making the applications of this unit virtually limitless. Additionally, the CDFI500P has an optional plumbing kit which would allow you to directly connect the unit or units to a singular water supply, eliminating the need to refill the water reservoir.
Features
- Revolutionary ultrasonic technology produces a fine mist to create the illusion of flames and smoke - most authentic fireplace experience
- Multiple 20" or 40" cassettes can be combined in tandem to achieve the desired length for dramatic linear installations
- Includes spacers and slots for customizable flame width and pattern
- Control the desired volume of flame to your liking
- Included water tank fills up with tap water and enjoy up to 8 hours of continuous flames
- Enjoy a more complete sensory experience with the sound of a natural wood fire crackling
- Direct wire installation
- Heat Output is optional - not included
- Includes flat plate that supports custom media
- Control the flames and crackling sound effects with included remote
- Fueled by water - costs only pennies per hour
- Optional inner glow logs also available
- Optional plumbed water supply kit provides continuous operation without refilling water tanks
Product Specifications
Dimplex Optimyst® Pro 500 20" Built-In Electric Cassette Product Specifications
| PRODUCT SPECS | |
|---|---|
| Brand | Dimplex |
| Finish/Color | Black |
| Media Bed |
|
| Installation | Built-In |
| Weight |
|
| Heat Location | Heat Optional Add-On |
| Warranty | 2 Year |
| Remote Control | On / Off |
| ELECTRICAL SPECS | |
|---|---|
| Volts | 120V |
| Amps / 3.83 |
|
| Watts |
|
| Wiring | Hard Wire |
| Bulb Type | LED |
| BTUs |
|
| Heating Area | N/A |
| Certification | ![]() |
IMENSIONS:
Fireplace Dimensions: 20" W x 9" H x 12" D

Product Manual
Dimplex Installation Manual
Dimplex Owners Manual
Dimplex Sell Sheet Accessory
Product Warranty
Dimplex Product Warranty
Your purchase is covered by the Manufacturer’s Limited Warranty. View full Manufacturer Limited Warranty below.
Dimplex Warranty
Return Shipping
The consumer is responsible for all “Product Return Shipping” carrier fees, except if the unit is defective, damaged upon receipt or if the wrong product is shipped. We will cover the return shipping costs directly seven (7) days after delivery if the product was delivered damaged, seven (7) days after delivery if the wrong product was shipped from Glen Dimplex Americas or thirty (30) days after delivery for concealed damage or defective.
The consumer will be responsible for all “Product Return Shipping” carrier fees relating to buyer’s remorse or if the consumer ordered the incorrect model and require a replacement. A 25% restocking fee will apply.
Product FAQs
Dimplex Product FAQs
How do I know what part I need for my Dimplex unit?
Troubleshooting Guides and Replacement Parts lists are located in the Parts and Service Manual which is included in the original packaging along with the product. If this is lost or misplaced, these manuals can be found by entering the model number found on the unit in the search field in the Product Downloads section. If you have any questions, you can email our customer service team. Please include your model number and serial number so we can assist you quickly and efficiently.
How do I tell if my existing unit is a Dimplex unit?
Most Dimplex fireplaces say Dimplex on them somewhere. Other brand names we have sold under were Electrolog, Symphony, and Optiflame. If you need some assistance you may Contact Us.
Please have your model number and serial number available so we can assist you efficiently.


















