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Dimplex Opti-Myst Pro 20'' Water Vapor Electric Fireplace Cassette

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$2,129.99 $2,982.00
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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. 

Included spacers and slots provide customizable flame width and pattern options. Built -in water tank fills up with tap water and lets you enjoy up to 8 - 12 hours of continuous flames. Enhance your complete sensory experience with the sound of natural wood fire as the flames dance in front of your eyes. Control the flames and crackling sound effects with included remote. 

Change the look of your Dimplex Opti-Myst Pro Cassette Insert by simply adding optional realistic log set to the top of the unit. it instantly changes the look of your fireplace from contemporary to traditional. The log set is hand finished and painted to expertly replicate real burnt wood. Express your own unique style as the mist rises up through the rocks and the light reflects against the water molecules creating a jaw-dropping illusion of flames and smoke. The result is an appearance with unmatched realism and it will be nearly indistinguishable to a true wood-burning fire.

Caution: When determining a location for the Opti-myst® cassette, ensure that the unit will not be susceptible to drafts, vents, ceiling fans and other air currents. Similar to a candle, large movements of air will affect the unit’s ability to create and maintain the effect.


  • 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 series 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 suit
  • 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 natural wood fire
  • Direct wire installation
  • No heating Option. Designed with the sole purpose of providing a stunning visual fire feature
  • 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


  • Dimplex 20'' Opti-Myst Built-In Electric Fireplace Cassette
  • Multi-Function Remote
  • 2 Years Warranty
Brand Dimplex
Finish/Color Black
Media Bed N/A
Installation Cassette
Weight 22.3 lbs 
Heat Location N/A
Warranty 2 Years
Remote Control Multi-Function
Volts 120V 
Amps 3.83 Amps
Watts 230W
Wiring Wired In 
Bulb Type LED
Heating Area N/A



Fireplace: 20''W x 9 1/2''H x 12''D 

Framing / Rough Opening: 20 3/8''W x 14 1/4''H x 9 1/2''D

Dimplex 20-Inch Opti-Myst Pro 500 Water Vapor Built-In Electric Fireplace | CDFI500-PRO Cassette Water Myst Fireplace DIms

How to Hard Plumb Dimplex Optimyst Cassette

How to Install the Plug-Kit to Dimplex Optimyst Cassette

How to Pair the Remote to Dimplex Optimyst Cassette

How to Level Dimplex Optimyst Cassette

How to Use Spacers, Blockers, and LED Logs with Optimyst Cassette

How to Hardwire the Dimplex Optimyst

Dimplex Optimyst Series Maintenance

What to Do When Dimplex Optimyst Cassette Lights Flash

Locating and Replacing the Extra Transducer on Dimplex Optimyst

How to Connect Dimplex Optimyst Cassette Units Together



Shipping Rates & Products with Free Shipping

  • Water Fireplaces Provides Free Shipping on Orders Over $100 in Continental USA

Orders Under $100

  • Orders Under $100 will have $10.99 Flat Shipping Rate

Canada and USA Territories

  • We Can Ship to Canada, AK, HI and USA Territories. Please contact us for Details: 1-800-217-0735 or

Please Click Here to View Full Shipping Policy.


    Your newly purchased Water Vapor Electric Fireplace Unit is covered by the Manufacture Limited Warranty, subject to Terms and Conditions. View full Manufacture Limited Warranty below.

    If you have technical issues with your Water Vapor Electric Fireplace, within the warranty period, please consult your product manufacturer's warranty. You can contact either us at or contact the manufacturer of your product. We are here to help you. 

    Please Click Here for Manufactures Contact Information and to Register Your Product.


    At Water Fireplaces  we work with many top brands in the industry and all our products are of the highest quality. We want you to be happy with your purchase and enjoy it for many years to come. We strive to provide the best Water Vapor Electric Fireplace shopping experience possible. 

    Please make sure you take all the correct measurements before placing the order. We offer installation manuals on every product we have. Please call us first if you are unsure of correct measurements needed to install your Water Vapor Electric Fireplace.  

    If your Water Fireplace appears defective upon use, please contact the manufacturer about your warranty.

    Water Fireplaces™ Offers a 30 Days Return Policy on all new, unused, unassembled, and resalable items in their original packaging. We will refund your purchase amount minus the return shipping charges. View full Return Policy below.

    Price Match Policy 

    Water Fireplaces offers the best price match guarantee. If you find a lower price for the exact same item elsewhere on line or at a local retailer we will match or possibly beat that price. For the fastest price match please contact us at 800-217-0735. E-mail to or via Chat.

    Please Click Here for the Full Price Match policy


    • Price match policy doesn’t apply to closeout sales, warehouse specials, refurbished, used or damaged items.
    • Price Match cannot be combined with other offers.
    • We do not price match to auction sites and vendors such as craigslist, e-bay or similar.

    If you have any additional questions please contact us:


    Our Strive For Excellence 

    • Passion for Design, Style and People: Water Fireplaces is a family run business with passion for design, style, people, reputation and longevity. Every single customer matters to us. Our future as a company is built together with all our happy customers. We are building longevity and legacy not just a business.
    • FREE Shipping on Most Orders: Orders over $100 we ship for Free anywhere in the continental USA (lower 48 U.S. states).
    • Sales Tax Savings: You do not pay any sales tax on purchases in the Majority of the States. 
    • Satisfaction Guarantee: We want you to be happy and satisfied with your purchase. We offer 30 Days Return Policy. We ask that you return item in the original packaging, with all original content and in sellable condition. (see full Return Policy). 
    • Lowest Price Match Guarantee: If you find any Water Vapor Fireplace Model that we carry Cheaper Online or Offline, we will match it and possibly beat it (see full Price Match Policy). 
    • Excellent Customer Service: From the moment you first contact us we will offer you the very best advice and service to find the item you need at the price that fits you. 
    • Authorized On-Line Dealer/Distributor: It is important to purchase from trustworthy source that manufacturers endorse and authorize. We are authorized dealer of all the brands that we represent. That means that we have direct relationship with each manufacture concerning warranty, regulated pricing and service issues. There are number of unauthorized retailers out there. They cannot provide or guarantee resolutions with warranty and service. It is always safer to purchase and work with authorized dealer. 
    • Brand Names: At Water Fireplaces we only work with the best brands in the industry and all our products are of the highest quality. We strive to bring Water Fireplaces products to fit every taste and like. Call us today or talk to us via our chat and we will help you the best we can. 
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    Dimplex Opti-Myst Pro 20'' Water Vapor Electric Fireplace Cassette

    Dimplex Opti-Myst Pro 20'' Water Vapor Electric Fireplace Cassette

    Your Price:
    $2,129.99 $2,982.00
    You Save: $852.01 29%

    **Select Media Options**

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