Sustainable Hearth E-FX Slim Line Series
The Sustainable Hearth E-FX Slim Line Series delivers a premium built-in fireplace look in a shallow 7-inch-deep cabinet. It is designed for condos, apartments, offices, compact media walls, and other projects where wall depth is limited but flame quality and a clean architectural finish still matter.
The series includes four models with different proportions, from compact vertical formats to wider linear designs. Each model uses the same core visual technology, illuminated log presentation, hidden heater, and flexible control options.
At a Glance
| Best for | Condos, apartments, offices, compact media walls, and shallow wall cavities |
| Installation type | Built-in, single-sided |
| Available sizes | 24", 30", 30" tall, and 40" |
| Depth | 7 inches |
| Controls | Remote, manual keypad, app, and compatible voice controls |
| Flame use without heat | Yes |
| Viewing glass | Ultra-high-definition, low-reflection front |
Choose Your Size
The four E-FX Slim Line models share the same 7-inch depth and core feature set. Choose based on the width and proportions that best suit the room and wall design.
| Size / SKU | Best for |
|---|---|
|
24" / SL 600 FLR-FP-EFX-SL-600 |
Bedrooms, offices, apartments, and narrow walls |
|
30" / SL 750S FLR-FP-EFX-SL-750S |
Compact contemporary feature walls |
|
30" Tall / SL 750T FLR-FP-EFX-SL-750T |
Traditional or vertical fireplace proportions |
|
40" / SL 1000 FLR-FP-EFX-SL-1000 |
Small living rooms and compact media walls |
Good Fit If
- You want a built-in fireplace but have limited wall depth.
- You prefer a clean, single-sided installation.
- You want adjustable flame colors, animations, speed, and lighting.
- You want year-round ambiance with independent heat control.
- You value remote, app, keypad, and voice-control options.
Not Ideal If
- You want a corner, three-sided, or see-through fireplace.
- You need a very wide statement fireplace for a large feature wall.
- You want a freestanding or simple wall-mounted unit that requires no framing.
- You are shopping primarily for the lowest-cost electric fireplace.
Key Features
- Ultra-slim cabinet: A 7-inch depth helps preserve floor space and reduces framing depth.
- Low-reflection UHD front: Designed for a clearer view of the flame presentation.
- Animated LED logs: Illuminated log effects add movement and depth.
- Customizable appearance: Adjust flame color, animation, speed, and lighting.
- Hidden heater: Supplemental heat without a prominent front grille.
- Smart operation: Use the remote, manual keypad, app, or compatible voice controls.
- Year-round use: Operate the visual effects with or without heat.
Installation and Fit
The E-FX Slim Line Series is intended for framed, built-in, single-sided installations. Its 7-inch depth makes it especially useful for shallow walls and compact rooms. Confirm the selected model's framing dimensions, electrical requirements, and finish clearances before construction begins. Professional installation is recommended.
What’s Included
- Sustainable Hearth E-FX Slim Line electric fireplace
- Remote control
- Log and ember-bed media supplied for the selected model
- Installation and operating documentation
Product Specifications
| Brand | Sustainable Hearth |
| Series | E-FX Slim Line |
| Product category | Built-in electric fireplace |
| Viewing style | Single-sided |
| Available models | SL 600, 750S, 750T, and 1000 |
| Depth | 7 inches |
| Heat operation | With or without heat |
| Controls | Remote, keypad, app, and compatible voice control |
Common Questions
How deep is the E-FX Slim Line Series?
Each model is 7 inches deep, making the series suitable for shallow framed walls and compact spaces.
Can it be installed as a corner or three-sided fireplace?
No. The E-FX Slim Line models are designed as single-sided built-in fireplaces.
Can the flame effect operate without heat?
Yes. The visual effects and heater can be controlled independently.
Which model is best for a traditional fireplace proportion?
The 750T has a taller, more vertical viewing area than the wider linear models.
Is professional installation recommended?
Yes. Review the model-specific framing and electrical requirements before construction.
Guides and Manuals
- Installation Manual
- Operating Instructions
- Log Installation Manual
- Specification Sheets: 24-Inch, 30-Inch 750S, 30-Inch 750T, 40-Inch
Related Buying Guides
- Electric Fireplace Buying Guide
- Electric Fireplace Sizes Explained
- Built-In vs Wall Mounted Electric Fireplaces
- Best Electric Fireplace for a Media Wall
Related Collections
Why Buy From Very Good Fireplaces?
- Authorized dealer for premium electric fireplace brands.
- Expert support before and after purchase.
- Help choosing the right size, style, and installation type.
- Price guarantee available.
- Fast shipping and easy returns.
Not sure which size or fireplace style is right for your project? Get a personalized recommendation before ordering.
