Keep the system generation together
The exact heater sheet names CDFI500-PRO and CDFI1000-PRO; newer RGB fit is not established.

Dimplex
From $255.99
Dimplex ·
A 120V, 1,000W direct-wire heater for the documented Optimyst Pro cassette applications or standalone supplemental warmth.
In Stock

Bring supplemental warmth to a documented Optimyst Pro installation with a separate 1,000W fan-forced heater. CDFI-TMHEAT can be used with the named Pro 500 and 1000 cassettes or as a standalone heat source.
The heater is a distinct part of the project: it does not create water vapor, supply flame media or turn every Optimyst enclosure into a compatible system. Keep the exact cassette generation and installation arrangement together when planning the connection.
A ten-foot extension wire supports remote operation through the cassette. Built-in overheat protection and a compact body support the installation, while the 120V hardwired connection should be planned with the installer.

Body measurements are separate from carton dimensions. Match the exact cassette generation and installation requirements.
| Body width | 15 in |
|---|---|
| Body height | 7.75 in |
| Body depth | 3.4 in |
| Electrical supply | 120V hardwire |
| Heat output | 1,000W |
The exact heater sheet names CDFI500-PRO and CDFI1000-PRO; newer RGB fit is not established.
| In the box | Contents & quantities |
|---|---|
| Heater accessory | CDFI-TMHEAT fan-forced direct-wire heater |
| Control connection | 10-foot extension wire for cassette remote operation |
| Separate system components | Cassette, water system and decorative media are not supplied with this heater |
The exact CDFI-TMHEAT sheet names CDFI500-PRO and CDFI1000-PRO. It describes use with an Optimyst Pro 500 or 1000 cassette, or as a standalone heater. A similar RGB product name does not establish compatibility with a newer cassette or enclosure.
No. This is a fan-forced electric heater. The water-vapor flame effect comes from a separate compatible Optimyst cassette. Adding this heater does not supply a cassette, water system or decorative log set.
The manufacturer specifies a 120V hardwired supply and 1,000W heat output. Have the electrical and installation requirements checked for the actual project. Do not treat a plug kit for a different Dimplex appliance as a verified conversion for this heater.
Yes. The product sheet describes standalone use as well as installation with the named Pro cassettes. The installer still needs to follow the heater’s own placement, connection and access requirements.
The catalog describes a ten-foot extension wire for remote operation through a cassette. That does not establish a separate handheld remote in this accessory package. Plan control integration around the exact cassette and heater documentation.
This 1,000W fan-forced heater is intended for supplemental warmth. The manufacturer describes up to 400 square feet; actual performance depends on insulation, ceiling height, climate and room layout. Size the primary heating system separately.
No. The product sheet separately lists carton measurements. The catalog body dimensions are 15 inches wide, 7.75 inches high and 3.4 inches deep. Installation clearances and the surrounding assembly must come from the heater instructions, not its shipping carton.
Do not infer that combination. This exact sheet documents the CDFI500-PRO and CDFI1000-PRO generation. A current RGB enclosure can have its own heater arrangement; match the complete system model before adding another heat source.
The product sheet lists built-in overheat protection. Keep airflow and service access clear as required by the installation instructions. A safety cutout does not remove the need for correct placement and electrical installation.
Keep the CDFI-TMHEAT model number, purchase record, installation information and any connected cassette model. The exact product sheet lists a one-year accessory warranty; coverage for a separate cassette or enclosure is a different matter.
CONFIDENCE BEYOND THE FIRST FIRE
The exact CDFI-TMHEAT product sheet lists a one-year accessory warranty. Keep the model and purchase record for support; separate cassette and enclosure coverage is distinct.
A real person. Useful advice.
We can help check the heater code against your exact Pro cassette and planned control connection.

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The Dimplex story
Dimplex’s electric-flame story includes the original Optiflame® effect, introduced in 1988. Its continued development of electric fire experiences includes Optimyst® water-vapor technology, which combines cold water vapor and light to create a moving flame illusion.
Part of the Glen Dimplex Group, the brand offers electric fireplace designs for residential, commercial and hospitality spaces. At Hearth Outpost, explore the different forms, flame technologies and installation approaches to find the one that belongs in your project.
Visit the Dimplex Shop by Hearth Outpost