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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 Brochure


  • Opti-myst technology - life-like, 3-dimensional flame effect, creates an illusion of fire and smoke. The world's most authentic electric fireplace experience.
  • Easy Fill Water Reservoir - Offers up to 12 hours of continuous operation before refilling.
  • Media Options - Includes a flat plate that supports custom media (not included). Optional inner glow logs also available.
  • Safe - With no flame heat it stays cool to the touch
  • Customize Your Installation - The Opti-Myst Cassette can be installed virually anywhere, add any finishing features you can think of
Dimplex Opti-Myst Pro 1000 Built In Electric Cassette | CDFI1000-PRO | Technical Details


Product Details

Fuel Type: Electric
Vent Type: Vent Free
Installation Type: Built In
Style: Linear
Weight: 35 lbs.
BTU's @ 120V: 1,569 BTU's
Amps: 3.83 Amps
Watts: Max 460W
No Heat Setting: No
Dimplex Opti-Myst Pro 1000 Built In Electric Cassette | CDFI1000-PRO | Dimensions


Actual Dimensions

Height Width Depth
81/2" 40" 12"

Framing Dimensions

Height Width Depth
91/2" 403/8" 141/4"

Technical Drawings

For more detail please see the Installation Manual

CDFI1000 Technical Drawing 1
CDFI1000 Technical Drawing 2


How will this fireplace be shipped to my house?

The Opti-myst Pro 1000 Cassette fireplace will be securely packaged and inspected before leaving the warehouse. For more information, see our FAQ page.

Have another question? Email us,, call us (844)635-5499 or use the question and answer system below!

Questions & Answers

Ask a Question
  • Do you carry the 60" Dimplex Opti-Mist Pro? If so, what is your best price and can u send me a video on this unit? Please advise.

    We do carry the new Dimplex Opti-Myst GBF1500 Pro firebox.  We'll send a quote and link to the video to your email.  Thanks for your question!

  • What are the rough in dimensions for this unit

    The dimensions are 40-1/8"W x 9-1/2"H x 12"D.  Thanks for your question!

  • if we need 80" wide should we just order (2) of 40" units? can that be seamless and feel like one unit?

    Yes, they can be installed next to each other to create an 80" width.  There will be just a slight gap in the flames between the two.  There's also a slight gap in the middle of each of the Pro 1000 cassettes as they are actually two Pro 500's in one body.  I've circled the two spots in this picture.  Thanks for your question!

Warning CA residents-Prop 65