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EcoSmart Fire Flex Ethanol Firebox with One Closed Side

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Make a Statement With a 3-Sided Fireplace That Has One Closed Side

Do you wish your home had a grand, luxurious statement piece that could be admired from all angles?

Don't settle for the same fireplaces as everyone else. Create something unique to your décor with modern, clean, and green technology that won't sacrifice elegance.

With the EcoSmart Fire Flex Ethanol Firebox with One Closed Side, you can bring grandeur and luxury into any space. The 3-sided design of this firebox, with one side closed, provides a great view of the eye-catching flames from almost any angle. Suited for indoor and outdoor use, it's a great alternative to electric or gas fireplaces.

The installation process of this ethanol firebox is highly flexible and doesn't require any expensive remodeling. You can place this firebox wherever you want without the need for any chimney or vent. Moreover, it runs purely on liquid bioethanol fuel which doesn't require a gas line or electricity.

Now here's the best part - once installed, you can light it up, sit back, and enjoy the elegant real flames without worrying about any smoke, fumes, or mess. So, go ahead and add a touch of sophistication and luxury to your space with this bioethanol firebox.

Choose from 9 sizes available, 16" to 160" viewing areas, and enjoy the warmth and ambiance of a real flame fireplace anytime and anywhere. Buy now and enjoy free shipping!

What's Included: Ethanol Firebox, Fire Lighter, Lighting Rod, Jerry Can (1.25 Gal), Bottle Adaptor, Black Glass Charcoal, and User's Manual

This firebox is also available in other configurations: EcoSmart Fire Flex Collection

EcoSmart Fire Flex Ethanol Firebox Video:


  • Built-in 3-sided ethanol firebox for Indoor or Outdoor Installation
  • Ventless - all the fuel is housed within Flex’s self-contained burner so you don’t have to run a gas line or electric wires through your walls. And because e-NRG Bioethanol is clean-burning, you don’t need a flue or a chimney
  • Virtually no maintenance is required
  • Quick and Easy Assembly - requiring virtually no assembly, Flex Fireboxes are designed to be placed into the desired location, safely secured into position, and operated immediately.
  • Zero Clearance - self-contained, zero clearance construction allows your Flex fireplace to be framed into wood or metal studs, providing installation freedom and flexibility for builders.
  • Luxurious Finish - timeless black finish firebox with high-quality 304 stainless steel burner and black glass charcoal.
  • Rust Proof - zinc sealed steel construction powder coated with super hi-temp black paint prevents rusting so all fireplaces can be used both indoors or outdoors.
  • Seamless Construction - ensures no leaks or corrosion on the seams
  • Sliding Door Shut-off Mechanism - quickly and safely extinguish the fire and regulate flame height and fuel consumption.
  • Adjustable Flame - allows you to control the flame intensity and heat output
  • Safe Filling - safer than most other ethanol fireplaces
  • 2 Glass Windscreens Included - for safety and wind protection
  • UL Listed - thoroughly tested to meet safety standards in the USA
  • ISO Certified
  • ICC Certified
  • 2-Year Manufacturer's Warranty.
  • Uses Clean-burning Bioethanol Fuel (Purchase separately)

This firebox is also available in other configurations: EcoSmart Fire Flex Collection


16" 0.7 Gallons 8-11 hrs 5,800 215 sq.ft 19.8" L x 160" W x 13.4" D 75.40 lbs
33" 1.3 Gallons 10-13 hrs 11,430 431 sq.ft 19.8" L x 33.5" W x 13.4" D 110 lbs
43" 1.8 Gallons 9-12 hrs 13,650 538 sq.ft 19.8" L x 43.5" W x 13.4" D 143 lbs
52" 2.4 Gallons 8-13 hrs 15,000 646 sq.ft 19.8" L x 51.6" W x 13.4" D 130 lbs
70" 2.6 Gallon 8-14 hrs 15,290 700 sq.ft ESF.FX.68PN 227,lbs
88" 4.8 Gallon 8-13 hrs 30,000 1,292 sq.ft 19.8" L x 87.8" W x 13.4" D 226 lbs
106" 5.3 Gallons 9-14 hrs 30,580 1,399 sq.ft 19.8 " L x 106" W x 13.4" D 338 lbs
124" 7.1Gallons 8-13 hrs 45,000 1.938 sq.ft 19.8" L x 124" W x 13.4" D 321 lbs
160" 7.9 Gallons 9-14 hrs 45,870 2,099 sq.ft 19.8" L x 160" W x 13.4" D 511 lbs

What's in the Box:

  • Ethanol Fireplace - 1 pc.
  • Fire Lighter - 1 pc.
  • Lighting Rod - 1 pc.
  • Jerry Can (1.25 Gal) - 1 pc.
  • Bottle Adaptor - 1 pc.
  • Black Glass Charcoal - 1 pc.
  • User's Manual - 1 pc.


WARNING: The use of this product and byproducts of the combustion of fuel, such as propane, natural gas, and/or ethanol can expose you to chemicals including formaldehyde, which are known to the State of California to cause cancer, and including acetaldehyde, which are known to the State of California to cause birth defects or other reproductive harm. For more information go to

Free and Fast Shipping! Read our full Shipping Policy here.

We offer market-leading 30-Day Free Returns! Read more about our Returns Policy here.

EcoSmart Fire offers a full 2-year warranty from date of purchase on stainless steel parts including raw, linished and powder coated.

Mild steel including powder coated and chrome plated, concrete composite, glass, leather, fabric and MDF (painted or cement rendered) are covered for 1 year from the date of purchase.

Chips and scratches are not covered by warranty. Natural variation in color, texture and porosity may occur with Concrete Composite products and are considered inherent and valued qualities of the material. Non-structural hairline cracks are possible and shall not be considered a manufacturing defect.

What if I have modified the product?

If the product has been modified or altered in any way, it will not be covered under warranty unless the modifications were approved in writing by EcoSmart Inc or The Fire Company Pty Ltd. However, EcoSmart Fire is happy to provide assistance with any issues you are experiencing.

How do I submit a warranty claim?

You will need to provide proof of purchase along with a description and images of the issue. Once you’ve gathered this information, please email all details to Your claim will be reviewed within 7 days and you will be contacted with a decision and the next steps, if applicable.

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