Flex 50SS Single Sided
Specifically designed for a single room application, the Flex Single Sided Fireplace Insert features one open side, enabling the flame to be viewed from the front. The bioethanol, true zero-clearance fireplace can be used to create a striking addition to a feature wall, integrated within cabinetry or a fireplace setting - whether in a residential dining room, indoor or outdoor living area, or commercial spaces.
The clean lines and 'all flame' configuration of the Flex 50SS means the entire viewing area is dedicated to the eye-catching flame, creating a harmonious blend of traditional style and contemporary design.
One of the most popular of the XL Series burners, the XL900 burner delivers a stunning linear flame. With a 2.4 gallons capacity, this elongated burner can heat up to 646ft2, making it ideal for larger residential and hospitality spaces such as open plan restaurants and bars or hotel lobby areas.
Efficiency is a key feature of this burner, delivering up to 13 hours of heat generating flame from a single refill.
Indoor or outdoor single room application. With one open side, view the flame from the front.
Available in black, firebox comes with stainless steel burners and decorative Black Glass Charcoal.
No Gas or Electricity
No gas, no electricity, no chimney, no venting or external vent cap. 4 fewer General Contractors.
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
Self-contained, zero clearance construction allows your Flex fireplace to be framed into wood or metal studs, providing installation freedom and flexibility for builders.
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.
Zinc sealed steel construction powder coated with super hi-temp black paint prevents rusting so all fireplaces can be used both indoors or outdoors.
Available in a timeless black finish, Flex Fireboxes come with stainless steel burners and black glass charcoal.
Included integrated windscreen sits flush behind frame.
Tested World Wide
Our collection has been thoroughly tested against a number of global standards and are UL Listed in the USA, Certified for EU and UK in accordance with EN16647, and satisfy the ACCC Safety Mandate for Australia.
- Weight 157lb [71.40kg]
- Model Dimensions in [mm] W 57.9  D 14.4  H 31.8 
- Viewing Area in [mm] W 50  D 13.4  H 19.8 
- Materials Mild Steel & Toughened Glass
Model SpecsTechnical information about the model and the included burner.
C&I ManualClearances & Installation information about the product.
Burner ManualInstallation, operation and maintenance manual.
Heats on Average
ReviewsWrite a Review
Ease of installation are paramount and EcoSmart accomplished bothModel: Flex 50SS
We loved EcoSmart fireplaces so much that we installed 2 in our recently completed Penthouse Triplex at 10 Sullivan Street in New York City!
For us, ease of use for our clients and ease of installation are paramoun...more
The name says it all EcoSmartModel: Flex 50SS
I am a builder in the San Francisco Bay Area. If you are building or living in California then you know it’s all about indoor/outdoor living. People ask me how I create so much value for my houses. I tell them it’s Ec...more
Love how seamless the unit fits into our living roomModel: Flex 50SS
I truly love how seamless the unit fits into our living room, it’s awesome that we could be afforded the opportunity to have a fireplace despite not having the ability to have a chimney. We rent and this was a perfect...more
Design ResourcesView All
Flex Fireplaces vs Gas Fireplaces
Top 3 reasons why homeowners, builders, architects and designers choose Flex Series over Gas Fireplaces.
A successful banker based in the centre of London, Sebastien Gianfermi and his architect-trained wife refurbished a 19th century, Regency penthouse into a sophisticated two-level family home. The iconic British style of architecture was given a much-needed modern makeover that not only breathed new life into the building but also captured the couple’s signature style.
Flex Fireplaces Brochure
Flex Fireplace Series ensures your next commercial project or residential renovation includes a captivating fire feature.
How Can We
Step-by-step guidance to find the right solution for your needs, trade professional benefits, and ongoing support before and after your purchase.Live Chat
From product selection, to material sourcing, and project reviews, our team is here to help.
Our unparalleled support and versatile product range makes designing with fire simpler than ever.
Can't make it to our showroom? Book an online consultation with our team of specialists.
Smart pricing, personalised support and unparalleled creative freedom.
Enjoy exclusive discounts across our entire range of fireplaces and fire pits.