SKU:X-GBF1000-PRO
Dimplex
Dimplex Opti-Myst Pro 1000 40" Built-In Electric Firebox - X-GBF1000-PRO
Dimplex Opti-Myst Pro 1000 40" Built-In Electric Firebox - X-GBF1000-PRO
Free Delivery Order Above $299
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Have Questions? Call (844) 643-8500
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Description
This is the next-generation, all-in-one solution for an ultra-realistic, custom fireplace. It uses the revolutionary Optimyst® technology to create a 3D effect of real flame and smoke using only water vapor and LED lighting, resulting in a safe, cool-to-the-touch, and zero-emission fire feature.
The 40-inch Pro Box is engineered for versatile built-in installation, including a removable back panel for easy conversion between single-sided and see-through viewing.
Key Components Included:
-
CDFI-BX1000 Firebox
-
(2x) CDFI500-PRO Cassettes (Create the 40" flame ribbon)
- FG1000 Front Glass
The Optimyst flame effect uses revolutionary ultrasonic technology to produce a fine mist that creates the lifelike illusion of flames and smoke.
To complete the transition you will need to purchase the rear glass pane sold separately (GBF1000-GLASS).
It can be used as a supplemental heat source. It includes an effective fan-forced heater that will warm up to 400 sq. ft.; the heater heats one side, even with the backer panel removed.
Comes with: 40" Electric Firebox with Media Plate, 1000mm Cassette, and a discrete heater (1,460W / 120V), multi-function remote.
Optional Accessories (Sold separately): Plumb Kit, Plug Kit, Logs, Black Rock, River Rock, Driftwood, Rear Glass
Product Dimensions
H 31 3⁄4 in x W 46 5⁄8 in x D 16 1⁄4 in
H 80.5 cm x W 118.4 cm x D 41.2 cm

Product Features and Benefits
Opti-myst® Flame Effect
Revolutionary ultrasonic technology produces a fine mist to create the illusion of flames and smoke.
Customizable Flame Width
Includes spacers and slots for customizable flame width and pattern.
Single or Double-sided
Includes removable hi-gloss/reflective backer panel for easy conversion. Adjustable Flame Intensity Control the desired volume of flame.
Supplemental Heat
Includes an effective fan-forced heater to warm up to 400 sq. ft.; Heater heats one side, even with backer panel removed.
Continuous Water Supply
Optional plumbed water supply kit (CDFIPLUMB-KIT) provides continuous operation without refilling water tanks.
Media Options
Includes media tray that can be customized with any media (not included). Optional inner glow logs also available.
Crackling Sound Effects
Enjoy a more complete sensory experience with the sound of natural wood fire.
Frame, Wire and Finish
Basic installation requires fewer tradespeople, no gas lines, venting or chimney.
Zero Emissions
The most sustainable fireplace option; no emissions and 100% efficient.
Energy Efficient
Uses low-energy LED lights for low-cost operation.
Sight and Sound Remote
Control the flames, heater and sound at the touch of a button.
Product Specifications:
| Model | GBF1000-PRO |
| Finish | Black |
| Dimensions (Inches) |
H 31 3⁄4 in x W 46 5⁄8 in x D 16 1⁄4 in |
| Dimensions (cm) | H 80.5 cm x W 118.4 cm x D 41.2 cm |
| Flame Effect | Opti-myst Flame Effect |
| Heater Operation | Supplemental Heating |
| Heating Range | Up to 400 sq. ft. |
| Volts | 120 |
| Watts | 1,460 |
| BTU | 4,981 |
| Amps | 12.17 |
| Heat Disable | On Board Control |
| Operation Controls | Membrane Controls | Multi Function Remote |
| Installation | One-Sided or Double-Sided |
| Direct Plumbing | Hard Plumb | Refillable Bottles |
| Optional Accessories | Plumb Kit, Plug Kit, Logs, Black Rock, River Rock, Driftwood, Rear Glass |
Warranty
2 Years Limited Warranty.
Shipping & Returns
Shipping & Returns
Shipping Policy
We strive to make the ordering process as straightforward as possible. For any questions regarding your order, feel free to call us at +1 (844) 643-8500 or email us at support@usfireplaceshop.com during our regular business hours.
Order Confirmation:
Upon placing your order, you will receive a confirmation email. We will then verify that all items are in stock and ready for shipment. If your order can be delivered within the advertised time frame, it will be processed and sent to the warehouse for shipment. If the delivery time exceeds the advertised time frame, we will contact you via email and/or phone to confirm the order.
Order Processing:
Orders are processed usually within 24 to 48 business hours after your payment is verified and approved. Your items will be shipped as quickly as possible. Please note that shipping times indicate the time it takes for your package to arrive after it has been shipped, not from the date you place the order. Processing and shipping times exclude weekends and holidays.
If your order is urgent, we recommend contacting us to confirm product availability. In rare cases, if an item is unavailable or on backorder for an extended period, we will notify you promptly. Receiving an order confirmation does not guarantee acceptance of your order. US Fireplace Shop reserves the right to accept or decline any order for any reason and may require additional verification before processing.
Order Shipment:
You will receive an email with a tracking number within one business day after your item has been shipped. If you haven't received tracking information within 7-10 business days of placing your order, please reach out to our customer service team.
Estimated Time of Arrival:
Our standard delivery time is 7-14 business days. For custom-made products, the delivery timeframe is typically 4-12 weeks. If the estimated delivery date for your order falls outside the expected 7-14 business day range, our customer service team will reach out to confirm whether it is acceptable.
Areas Covered & Shipping Costs:
All estimated delivery dates and shipping costs advertised on our website apply only to the contiguous United States (the Lower 48 states). We provide free shipping on orders over $299.01 in our online catalog with standard ground delivery to the contiguous United States (some exclusions may apply). Items marked as "Free Shipping" qualify for this offer, but expedited shipping is not available for free.
Orders below $299.00: $70.00 (Flat shipping fee)
Orders above $299.01: Free shipping
For shipping to Hawaii, Alaska, or U.S. territories, additional shipping charges will apply, even if the item is listed as "Free Shipping." After you place your order, we will contact you with the shipping costs and arrange payment for the extra charges. If you need shipping estimation, please contact our customer service team to discuss time and cost. We do not ship internationally, but we can deliver to a freight forwarder of your choice.
Please note that the default Shipping includes a curbside delivery (Delivered to your curb, typically next to the mailbox. You will be responsible for moving and assembling.)
Damages:
It's important to inspect the packaging of all items upon arrival and ensure all boxes listed on the delivery receipt are received. If you notice any damage or missing packages, make a note on the bill of lading, take pictures & videos, and refuse delivery. The note should state "refused due to damage."
If there is no visible damage before opening the box, note "subject to further inspection, may contain concealed damage." By signing a freight delivery without noting any issues, you accept the product as-is and release the seller from liability.
If you discover damage after receiving the delivery, keep the packaging intact and contact us with photos and videos of all sides of the packaged goods within 2 business days. We cannot process your claim if images & videos are not provided within this timeframe. Once we receive your information about the refused delivery or concealed damage, we will initiate a claim with the shipping company or manufacturer and ship replacements at no cost to you.
Return & Refund Policy
Order Cancellations
If you wish to cancel your order, please contact us as soon as possible - most orders ship within 1–3 business days.
Your cancellation is only considered once you receive confirmation from us by phone or email.
Once an item has shipped, our Returns Policy will apply. Please note that a restocking fee of up to 25% may be charged on shipped orders.
To request a cancellation, contact us via:
- Email: support@usfireplaceshop.com
- Phone: +1 (844) 643-8500
Return Eligibility
At US Fireplace Shop, we strive to ensure your complete satisfaction with your fireplace purchase. If for any reason you need to return a fireplace item, please review our refund policy below.
Items can be returned within 30 days of receiving the order for an exchange, credit, or refund. The product must be unused, in new condition, and its original packaging with all materials (manuals, instructions, warranties, accessories, etc.).
Return Policy
- Fireplaces or accessory items must be returned within 30 calendar days from the date of delivery.
- Proof of purchase (order confirmation or receipt) is required.
- Custom or special-order fireplace items may not be eligible for return. Please check your product details or contact us for clarification.
- Your refund will be issued to the original form of payment. Most banks process refunds within 3–5 business days.
- For payments made via bank wire or check, refund checks will be mailed to you. Refund checks are valid for 90 days from the date of issuance.
- If the product you returned is not eligible for a refund, we will notify you as soon as possible.
- Shipping costs and a 25% restocking fee will be deducted from the refund.
Return Process
Contact customer support at +1 (844) 643-8500 to request a Return Authorization Number (RA#). Returns without a Return Authorization Number will not be accepted. The customer is responsible for return shipping costs, including adequate packaging, insurance, and using a reliable carrier with tracking.

We are an authorized retailer for all brands and products listed on our website. All orders are fulfilled and shipped directly from authorized manufacturer or supplier warehouses to ensure product authenticity, efficient delivery, and applicable warranty coverage. All orders are securely processed and shipped with trusted delivery partners including UPS, FedEx, USPS, LTL, and freight carriers. Our team manages all customer support, order assistance, and after-sales service to provide a reliable and transparent shopping experience.