Amantii Optimyst® Cassette by Dimplex | 20-Inch Water Vapor Flame Insert

Amantii Optimyst® Cassette by Dimplex — 20-Inch Water Vapor Flame Insert

The Optimyst® Cassette by Dimplex is an optional upgrade that adds a realistic water vapor steam-flame effect to the Amantii Signature TrueView Series and TRD Signature Series fireplaces. Using patented ultrasonic technology, it produces a fine water mist that creates a lifelike illusion of flame and smoke — without any actual fire, heat, or emissions.

*This cassette is a compatible upgrade component, not a standalone fireplace. It cannot be purchased or installed on its own — it must be purchased together with a compatible Amantii Signature TrueView Series or TRD Signature Series fireplace.

✨ Recommended Upgrade: This cassette completes the Optimyst® steam-flame effect on select Amantii fireplaces. Signature TrueView Series → 2 cassettes for the 55”, 3 for the 75”. | TRD Signature Series → 1 cassette recommended.

Technical Specifications

📄 Download the Owner's Manual (PDF)

Compatibility

Modular, Customizable Installations

The Optimyst® Cassette system is modular — combine multiple 20” cassettes with 40” cassettes to build custom flame lengths for dramatic linear installations that aren't achievable with traditional gas fireplaces.

Continuous Water Supply (Optional)

By default, the cassette uses a refillable internal water tank. For uninterrupted operation without manual refilling, an optional plumbed water supply kit (works with copper piping) is available as a separate purchase.

Still Not Sure? We're Here to Help.

Contact our team at support@luxoutdoorfireplaces.com or call us at (877) 335-2178 and we'll help you decide how many cassettes are right for your space.

Warranty Information

Glen Dimplex Americas Two-Year Limited Warranty

The Optimyst® Cassette is covered by a limited warranty from Glen Dimplex Americas, extended to the original purchaser only (non-transferable) on units purchased within the continental United States (Hawaii and Alaska excluded) or within Canada (Yukon, Nunavut, and Northwest Territories excluded).

This warranty does not cover damage resulting from misuse, abuse, accident, neglect, improper installation or maintenance, or use with an incorrect power source, and it is voided if the product is repaired or altered by anyone other than Glen Dimplex Americas or its authorized service agents.

To submit a warranty claim, contact Glen Dimplex Americas Technical Service at 1-888-346-7539. Have your proof of purchase, model, and serial number ready when calling. Full warranty terms are available on page 19 of the owner's manual.