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Dimplex - CDFI1000-PRO - Opti-Myst Pro 1000 40-Inch Built-In Electric Cassette
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This Dimplex electric cassette is warranted to be free from manufacturing defects for a period of two (2) years from the date of purchase.

Refer to manufacturers manual for full warranty details.

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The Skinny:

  • Incredibly realistic flames and smoke
  • Remote controlled features
  • Energy efficient heating
  • Cool-to-the-touch glass
  • Multiple mounting configurations

Things to Love:

Heating in Style

Though Dimplex Opti-Myst electric fireplaces are rightfully known for their realism, they’re also quite effective when it comes to warming a space. Many models of the opti-myst come with an optional heater that packs 5,000 BTUs and can easily warm about 400 square feet no matter the configuration — they come as a bookcase mantel, a built-in model, an electric log insert, cassette inserts, or even a plug-in electric stove. Once you know which type of electric fireplace you prefer, you can further customize its look down to the last detail with Dimplex media kits. Try mixing and matching different styles of river rock and driftwood for a variety of aesthetics, and don’t forget that some models also come with patented Inner-Glow electric logs molded from real wood for authenticity.

Opti-Myst Technology

Simply put, Dimplex’s patented Opti-Myst technology creates one of the most realistic flame and smoke effects we’ve ever seen. Here’s how it works: Ultrasonic sound waves generate a fine mist of water inside the unit, which reflects light from a bright bulb hidden within the electric fireplace. The light from the water molecules then appears to dance and lick the logs, creating a mind-bending recreation of a real wood fire. As if that wasn’t convincing enough, the mist rises just like smoke to complete the lifelike illusion, and some models even produce the sound of a crackling fire.

The flame effect is also three-dimensional, meaning you can take in the cozy feeling of a wood-burning fire from any angle. All you need is electricity and a bit of water, which sits in a reservoir that provides about 14–17 hours of flame effect when full. Thanks to this economic and efficient powering method, you can operate Dimplex Opti-Myst electric fireplaces for only pennies per hour.

Built for Safety

Because these units don’t contain actual flames, they run without giving off harmful emissions and remain safe for small children to be around. They also don’t alter the humidity level of your indoor space or remove oxygen from the air in the way a wood-burning fire does. Overall, Dimplex has created an electric fireplace that’s completely safe and ideal for residential or commercial applications. And while the included remote doesn’t address a safety issue, it’s nice to be able to adjust the heat, flames, or smoke effects from the comfort of your couch.

Things to Consider:

The water reservoir that feeds the Opti-Myst flame technology system must be refilled with distilled water every 14–17 hours of operating time. Make sure to use distilled water rather than tap water, which has certain impurities that can shorten the longevity of your unit. If you still have questions about Dimplex Opti-Myst electric fireplaces, our hearth and home experts are always standing by at 1-877-743-2269 to help you!

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Proposition 65

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WARNING: This product can expose you to chemicals including titanium dioxide, which is known to the State of California to cause cancer. For more information go to

Shipping & Returns

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Free Shipping on orders over $49

Ship your entire order to your home for free, especially the big stuff! *Continental US only

When Will My Item Arrive?

Once shipped, items usually arrive within 3–5 business days. If your item or order is large, it may ship via one of our third-party freight carriers, which deliver from semi trucks with lift gates. Freight delivery is much more complicated than standard parcel shipping — you must schedule a drop-off time, be present for the delivery, and move items from the curb to your residence, among other differences. Sound stressful? If you prepare in advance with our guide to freight delivery, it doesn’t have to be.

We strongly encourage reading the entire freight delivery guide, but here’s a quick snapshot of what you need to be ready for when you order a large package:

  • Your freight carrier will call you to schedule a delivery window of about 4–8 hours
  • You’re required to be physically present at the specified delivery location during the scheduled window
  • Freight shipments are carried in semi trucks, which have lift gates to assist with unloading
  • Freight deliveries are dropped off at the curb and no further — not up the driveway, not the porch, not the garage, and most definitely not the backyard — so it’s on you to transport packages to their intended location
  • For an easier time hauling items to your home or backyard, arrange for at least 2 helpers to be on standby during your delivery window
  • You must sign for the shipment to indicate that you’ve accepted the delivery

Again, we recommend reading our entire breakdown of freight delivery so you can become familiar with the process. Trust us when we say that getting caught off guard with the strict requirements of freight delivery can lead to a whole lot of headaches.

$6.95 Flat-Rate Shipping

Anything under $49 ships at one low price. If your order increases, your shipping stays the same!

30-Day Returns

Return all new, unused, and unassembled items in their original packaging, and we'll give you a full refund minus the cost of the original AND return shipping.

No Restocking Fee

Most companies charge a restocking fee. We just don't do business that way.

Message to our customers: Like all retailers and manufacturers, we’re currently experiencing well-publicized supply-chain issues and steel shortages that have caused some orders to be delayed. We sincerely apologize for any inconveniences arising from this situation, and we assure you we’re making every effort to solve these problems with our vendors and logistical partners.

So, why are some orders being affected? Major ports around the world are still operating at reduced capacity because of COVID-19 restrictions — on average, container boats sit at port for about 3 weeks before being unloaded. Combine these shipping inefficiencies with a scarcity of natural resources, and virtually every industry has been crippled to some degree. Yet we acknowledge that it’s our duty to meet these challenges head-on and work toward solutions so you can enjoy more time outdoors with the people you love. We appreciate your patience as we strive to smooth out our supply chain, and we thank you for choosing us for your grilling and outdoor living needs.

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