Item #: CBX1000-AM
SKU: CBX1000-AM
$6,264.99
The Dimplex Optimyst RGB Pro Box 40" (CBX1000-AM) is a boxed water-vapor fireplace that sets into a wall as one pre-built unit. Its 3D vapor flames take RGB color, it supports single- or double-sided ...
The Optimyst RGB Pro Box 40" (CBX1000-AM) is the smaller of Dimplex's two Pro Box sizes. The water-vapor cassette comes already mounted in its own enclosure, which helps builders and remodelers get a vapor fireplace into a wall without designing a custom firebox.
At 40 inches it fits a bedroom, office, spa or restaurant booth wall where the 60" Pro Box would be too large. RGB lighting lets you move the flame color away from traditional orange, and the unit can be set up to view from one side or both.
| Model | CBX1000-AM |
|---|---|
| Dimplex order # | 500004329 |
| UPC | 781052154650 |
| Size | 40" |
| Voltage | 120 V |
| Heat output | 4,984 BTU |
| Weight | 75 lb (34 kg) |
| Warranty | 2 years limited |
As an electric unit it has no combustion, so no chimney, flue or vent pipe is needed. It runs on 120V; check the owner's manual and technical specifications linked on this page for the opening size and the water arrangement. Install it per the manufacturer’s installation manual and local codes, using a qualified installer.
The Pro Box 40" ships complete with its remote. Confirm the opening dimensions and any water-line option in the manuals before you frame.
What is the difference between the Pro Box 40" and 60"?
Size and output: the 40" weighs 75 lb and makes 4,984 BTU; the 60" weighs 105 lb and makes 5,087 BTU.
Can I run it without heat?
Yes, heat is optional, so you can run the flame effect year round.
Can it be double-sided?
Yes, Dimplex lists single- and double-sided setups.
Questions about fit or venting? Call (540) 212-9374.
No video is available.
Q: Do You Ship to Me?
A: We ship to the contiguous United States only (no Alaska, Hawaii, U.S. territories, P.O. boxes or APO/FPO). Free shipping on orders over $99; orders of $99 and under ship for a flat $9.99. Large or fragile items ship by freight with curbside delivery, and the carrier calls to schedule the delivery appointment.
Q: When Will My Order Ship?
A: Typical delivery is 5–17 business days from the order date. Made-to-order items may take longer, as shown on the product page. You will receive tracking information once your order ships.
Q: What Payment Methods Do You Accept?
A: We accept major credit and debit cards (Visa, Mastercard, American Express, Discover), ACH bank payment, Apple Pay, Google Pay and Link by Stripe. You can also pay over time with Affirm, Klarna or Afterpay (subject to approval), or pay by direct bank transfer.
Q: Can I Cancel or Modify My Order?
A: Orders cancelled before they ship are refunded minus a 10% administrative fee. After an order ships, it is handled as a return under our Return Policy.
Q: Why Choose First Response Fireplace Products LLC?
A: First Response Fireplace Products LLC is an authorized dealer for the brands we sell, and every item includes the manufacturer warranty.
© 2026 First Response Fireplace Products LLC, All rights reserved
Before you go
Join the list for buying guides and new arrivals from an authorized dealer for every brand we carry. Every item includes the manufacturer warranty.
Please enter a valid email address.
No spam. Unsubscribe any time.
Questions? Call or text (540) 212-9374 · Monday–Friday, 9:00 AM–5:00 PM ET.