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Dimplex Opti-Myst 16-Inch Plug-in Vapor Cassette with Rocks (DFI400RH)

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Original Price $1,499.99
Current Price $1,199.99

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Dimplex Opti-Myst 16" Water Vapor Cassette Creates a Convincing Illusion of Flames and Smoke

Dimplex Authorized Dealer

Dimplex DFI400RH Cassette can be used to build a custom fireplace or as an insert into an existing fireplace.

Revolutionary ultrasonic technology is used to create the flame and smoke effect of the Dimplex® Opti-myst® DFI400RH. As the mist rises up through the curved plate, the light reflects against the water molecules creating a convincing illusion of flames and smoke. The result is an appearance so authentic it will be mistaken for a true wood-burning fire.

This attractive water vapor insert does not provide heat. The unit plugs into a standard outlet and consumes 200-Watts per hour.

What's included: DFI400RH Water Vapor Fireplace, Decorative Rocks, Plug, and User's Manual

Dimplex Opty-Mist Videos:


  • Water Vapor Electric Indoor Fireplace
  • 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.
  • Fill the water tank with tap water and enjoy
  • Easy-fill water tank: Offers 14 to 17 hours of continuous operation before refilling is required.
  • Plugs into any standard household outlet. 
  • Includes a convenient remote control for ease of use at your fingertips.
  • The green alternative. No harmful particulates or emissions and 100% efficient.
  • Completely safe, with no flame heat or emissions.
  • Low Maintenance - Halogen light replacement available
  • Economical - Fueled by water - costs only pennies per hour
  • Includes decorative Rocks. Other accessories can be used in place of rocks like decorative logs, crushed glass, etc.
  • 120 V
  • 200 Watts
  • 1.67 Amps
  • UL Listed
  • Dimensions: 13"H x 16" W x 8 1⁄2"D
  • Weight: 27 lbs
  • 1-Year Manufacturer Warranty

What's in the Box:

  • DFI400RH Water Vapor Fireplace - 1 pc.
  • Decorative Rocks - 1 bag
  • Plug - 1 pc.
  • User's Manual


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      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 1 Reviews
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      Filter Reviews:
      • realism
      • remote control
      • directions
      • Dimplex
      • appearance
      • fire
      • price
      • heater
      Joy O.
      Philippines Philippines
      I recommend this product
      The best fireplace without 'fire'

      I have always liked Dimplex products and this is a great product and excellent price. Follow the directions and it is easy to set up and maintain. Great realism in the appearance of fire. I am glad the heater is a separate plug as I don't use it. I love the remote control.

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