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Dimplex - DLGM29 - Opti-Myst II 28-Inch Open Hearth Electric Insert - Inner-Glow Logs - Flame Only
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The electric fireplace insert is warranted to be free from defects for a period of one (1) year from the date of purchase.

Refer to manufacturers manual for full warranty details.

Refer to manufacturers manual for full warranty details.

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Expert Review

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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!

Overall Rating

4.6 out of5

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Proposition 65

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WARNING: This product can expose you to chemicals including nickel, 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. While UPS and FedEx are our carriers for smaller items, be aware that larger items and orders are shipped via freight. The freight process is a bit more complicated than what we’ve all come to expect for small parcels, so it’s important that you’re prepared and understand what’s required of you well before delivery day.

  • Most freight products ship on a pallet
  • Some carriers will call to schedule a delivery window, while others will deliver the shipment to a reasonably accessible location closest to your residence (their goal is to deliver as near a garage door as they can).
  • We’ll specify which process you can expect in your shipping confirmation email.

For carriers that schedule delivery appointments:

Carriers that schedule delivery appointments require you to be home for delivery and provide your signature. The delivery is made with a semi-truck with lift gate services, and the shipment is dropped off at the curb. If you authorize the shipping company to leave the delivery without a signature, BBQGuys can’t be held responsible for damages that occur during delivery. As complicated as this process may seem, we’ve only scratched the surface here — please review our detailed guide to freight delivery so there are no surprises when a freight shipment heads your way.

For carriers that deliver without an appointment:

Carriers that deliver without an appointment don’t require you to be home or set up a delivery window, and you aren’t required to sign for the pallet(s). Instead of scheduling an appointment, arranging your schedule to be home for the delivery, and signing to confirm receipt, you can sit back and let your items come to you. If you’re home at the time of the drop-off, you can request the driver place your delivery in the garage; if you’re out of the house, the driver will leave it near the garage or doorstep.

$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.

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