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EcoSmart Flex 140SS.BX Bioethanol Fireplace Media Wall Insert

Mesmerising Flex 140SS.BX bioethanol fireplace by Ecosmart Fire; Open front, modern media wall fireplace insert with decorative box in black.

The Flex 140SS.BX bioethanol fireplace insert is part of our single side "hole in wallfireplace collection featuring one open side giving you the perfect front view of the frame with a decorative box on either side or both sides. 

The single-sided option includes 3 of the XL900 ethanol burners, making this one of the longest linear flames in the collection and perfect for spacious homes or gardens. If opting for double decorative boxes (one on either side), your Flex 140SS.BX will include 2 of the XL1200 ethanol burners

Your Flex fireplace comes complete with toughened glass which is designed to stabilise the flame. The integrated windscreen sits flush behind the frame giving the Flex Fireplace a tidy well-constructed look. This beautiful and modern fireplace insert by EcoSmart Fire provides you with ultimate comfort with your safety in mind. 

With virtually, no installation required you can simply fit the flueless fireplace where you desire, ready for use right away. This luxurious model comes in a timeless black finish, with stainless steel burners, and decorative black glass charcoal to complete the look.

Add some charming stainless steel brass/copper logs for an eye-catching feature!

e-NRG bioethanol fires - The safer, eco-friendly fuel  

The e-NRG bioethanol fuel produces the best, most realisticbeautiful orange flames that are completely mesmerising. You and your guests will completely fall in love with the delicate flames that create a rhythmic flicker like a traditional campfire and can rise higher than any other competitor.  
The eco-friendly fuel is clean burning with no smoke, no soot and no ash. Bioethanol "bio fires" are a great alternative to gas fire for this reason. In comparison to other fuels on the market, the e-NRG bioethanol fuel not only produces the lowest odour but also has the longest burning time, putting your comfort first. This fuel has been tested on all EcoSmart Fire products, which is why we would recommend only the e-NRG brand.  


  • Modern fireplace with open flame 

Linear with an open front allowing clear view of the beautiful smokeless orange flames 

  • Built to last a lifetime 

EcoSmart Fire has built the Flex Fireplace to last a lifetime and to be used both indoors and outdoors. The zinc sealed steel construction has been powder coated with super hi-temp black paint which prevents rusting. 

  • Zero Clearance 

The Flex is a true self-contained bio ethanol fireplace with its’ zero clearance construction meaning you can install this almost anywhere. With the added benefit of not needing a chimney or flue, this design allows you installation freedom.  

  • Reliable and certified 

These models are manufacturer-approved for use with the corresponding BS EN16647 compliant burners.  

Weight & Dimensions (1 decorative box)

  • WEIGHT: 195kg [430lb]
  • MODEL DIMENSIONS mm [in]: W 3770 [148] D 365 [14.4] H 807 [31.8]
  • VIEWING AREA mm [in]: W 3570 [141] D 340 [13.4] H 502 [19.8]

Weight & Dimensions (double decorative boxes)

  • WEIGHT: 194kg [427lb]
  • MODEL DIMENSIONS mm [in]: W 3771 [148] D 365 [14.4] H 807 [31.8]
  • VIEWING AREA mm [in]: W 3571 [141] D 340 [13.4] H 502 [19.8]

Specifications (1 decorative box)

  • VOLUME CAPACITY:27 L / 7.1 Gal
  • HEATS ON AVERAGE:180m/ 1938ft2
  • MINIMUM ROOM: 330m/ 11654ft3
  • THERMAL OUTPUT: 45000 BTU/h / 13.20 kW 48 MJ/h
  • FUEL EFFICIENCY: 8 - 13h 
  • MATERIALS: Mild Steel & Toughened Glass

Specifications (double decorative boxes)

  • VOLUME CAPACITY: 20 L / 5.3 Gal
  • HEATS ON AVERAGE: 130m/ 1399ft2
  • MINIMUM ROOM: 230m/ 8122ft3
  • THERMAL OUTPUT: 30580 BTU/h / 9 kW 34 MJ/h
  • FUEL EFFICIENCY: 9 - 14h 
  • MATERIALS: Mild Steel & Toughened Glass

Accessories included

Lighting Rod
Jerry Can 5L
XL Baffles
Black Glass Charcoal
Fire Lighter
Bottle Adaptor


How can we help?

If you have an enquiry regarding this product, please do not hesitate to ask via the contact form and we will get back to you as quickly as possible.