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Dimplex Opti-myst® 500 - 20-Inch Water Vapor Fireplace Cassette (CDFI500-PRO)

8 reviews
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Original Price $1,724.99
Current Price $1,379.99

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Dimplex Opti-myst® 500 - 20" Vapor Fireplace Cassette without Heat

Dimplex Authorized DealerPicture 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 CDFI500-Pro 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® Pro 500 20" Cassette is ideal for commercial applications. You can connect multiple cassettes to create dramatic linear installations.

What's Included: Opti-myst® 500 Water Vapor Fireplace, Remote Control, Media Tray, and User's Manual

Optional Accessories: Decorative mediaplug kitplumbing kit, and heater sold separately.

Dimplex Opty-Mist Videos:


  • Indoor Water Vapor Fireplace
  • Hardwired Installation
  • Contemporary Style
  • Brushed Stainless Steel Finish
  • Opti-Myst fireplace technology: Incredibly, life-like, patented 3-dimensional flame effect. Creates an illusion of fire and smoke. The world’s most authentic fireplace experience.
  • Multiple 20" (50.8 cm) and 40" (101.8 cm) cassettes can be combined in series to achieve the desired length for dramatic linear installations impossible to achieve with gas fires
  • Fill the water tank with tap water and enjoy
  • Easy-fill water tank: Offers 8 hours of continuous operation before refilling is required.
  • Optional Plumbing Connection: Provides continuous water supply complete with overflow safety sensor, automatically shutting off water to prevent leaks.
  • Designed to be direct-wired to a 120-volt circuit for a seamless look. (Optional plug kit available).
  • If connecting multiple cassettes you need a Plumbing Connection Kit for each cassette.
  • Includes flat plate that supports custom media (not included). Optional inner glow logs also available.
  • The cassette can also be used with any other accessories that don't block the vapor from coming out, like glass pieces, rocks, decorative logs, etc.
  • The cassette doesn't have a heat function. However, an optional heater can be installed above the cassette to provide supplemental heat to up to 400 sq. ft. 
  • Includes a convenient remote control for ease of use at your fingertips.
  • When connecting multiple cassettes use one remote to control all cassettes for simplicity.
  • The crackle of a real wood fire - adjustable with remote control
  • The green alternative. No harmful particulates or emissions and 100% efficient.
  • Completely safe, with no flame heat or emissions.
  • Low Maintenance - LED lights never need to be replaced
  • Economical - Fueled by water - costs only pennies per hour
  • 120 V
  • 230 Watts
  • 1.91 Amps
  • 785 BTUs
  • UL Listed
  • Dimensions: 9 1⁄2"H x 20" W x  12"D
  • Weight: 35 lbs
  • 2-Year Manufacturer Warranty

What's in the Box:

  • Opti-myst® 500 Water Vapor Fireplace - 1 pc.
  • Remote Control - 1 pc.
  • Media Tray - 1 pc.
  • User's Manual



      Free and Fast Shipping! Read our full Shipping Policy here.

      We offer market-leading 30-Day Free Returns! Read more about our Returns Policy here.


      Dimplex warrants their products to be free from defects in material and workmanship for a period of 2 years from the date of the first purchase.

      Click here to download the entire Dimplex Warranty


      This Limited Warranty applies to your newly purchased Dimplex Electric Fireplace with Model Numbers XLF50, XLF60, XLF74, and XLF100.

      Click Here to View The Warranty

      Customer Reviews
      5.0 Based on 8 Reviews
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      Filter Reviews:
      Yulian M.
      United States United States
      I recommend this product
      Excellent product!!!

      Loved this fireplace for our projects .

      Rosa P.
      United States United States
      I recommend this product
      Dimplex Optimist-Myst Pro 1000

      I’m very happy with my purchase. Fireplace looks very realistic and unique. Modern Blaze shipped it quickly and the customer service is great, they will answer any questions you might have ..

      Kourosh K.
      Beautiful fireplace

      I love my new fireplace!

      Modern Blaze Dimplex Opti-myst® Pro 1000 - 40 Water Vapor Fireplace Cassette (CDFI1000-PRO) ReviewModern Blaze Dimplex Opti-myst® Pro 1000 - 40 Water Vapor Fireplace Cassette (CDFI1000-PRO) Review
      Janet M.
      United States United States
      I recommend this product
      The flames & crackling were as authentic as you described.

      Extremely easy to install. No guilty conscience about contaminating the environment or leaving an **** footprint. Looking forward to enjoying our previously unusable fireplace all year long. But, we received no user's manual, no instructions for attaining the App, and there was a dent on top which lead us to believe this might have been returned by another customer. Left Modern Blaze a voice message last week. Have not heard back.

      Modern Blaze Dimplex Opti-myst® Pro 1000 - 40 Water Vapor Fireplace Cassette (CDFI1000-PRO) Review
      William B.
      US US
      New home construction option

      I selected the Opti-plex fireplace cassette for the fireplace in the new home I am building. The house is almost a 'passive house' design being built in Virginia. It is very tight and well insulated, with a heat pump and ERV system. I did not want to compromise the envelope with a vented fireplace. I wanted something looking much more authentic than an electric fireplace and not behind glass. I also did not want to be buying biofuel endlessly. A water vapor fireplace filled the bill perfectly. Unfortunately there was no showroom to see any of these in operation. I selected the Opti-mate based on its specs, features, videos and price. I did not care for changing the flame color as that destroys the authenticity, but the sound would add something. I ordered the cassette early and set it up in the basement of my current home to see it first hand and to assure that it arrived in good condition. It is just what I want! Beautifully authentic looking random and non-repeating flames, safe and negligible operating cost. Even adds a small amount of humidity to the home when it is likely needed. Now just to design the 'fireplace' to show off its flames to the best advantage.

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