Flex 158BN Bench Fireplace Insert
Create stunning custom indoor and outdoor fireplaces.
Designed as a room divider or stunning centrepiece with all open sides, the mesmerising flame can be viewed from the top, front, back, left and right sides. With the Flex Bench fireplace insert, the entire viewing area is dedicated to the flame, creating a harmonious blend of the traditional fire pit and contemporary fire design.
The clean lines and 'all flame' configuration of the Flex 158BN 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 longest flames available in the Flex Series is created by using 3 of our ever-popular XL900 Burners. With an overall heating capacity of 195m2 this appliance is best suited to large open spaces - think hotel lobby, large open plan restaurants.
Each burner holds 10L of fuel, and can deliver a stunning flame for up to 14 hours.
Configure & Buy
Buy online and get it delivered to your door.Inspiration
Key Features
Multi room
With all open sides, the firebox mesmerising flame can be viewed from the top, front, back, left and right sides.
No gas or electricity
No gas, no electricity, no chimney, no venting or external vent cap. 4 fewer General Contractors.
Self contained
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.
Zero clearance
The 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.
Colours
Available in black, firebox comes with stainless steel burners and decorative Black Glass Charcoal.
Luxurious finish
Available in a timeless black finish, Flex Fireboxes come with stainless steel burners 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.
Wind screen
Includes a translucent, toughened glass fire screen that provides an added layer of safety, peace of mind and comfort.
Clean burning
The fireplace inserts are fuelled by eco-friendly clean-burning e-NRG bioethanol, a renewable energy that emits no soot or smoke.
Technical Specifications
Construction
- Weight 119kg [262lb]
- Model Dimensions mm [in] W 4230mm [166.5in] D 354mm [13.9in] H 347mm [13.7in]
- Viewing Area mm [in] W 4015mm [158.1in] D 340mm [13.4in]
- Materials Mild Steel & Toughened Glass
- Colours
Accessories
Includes everything you need to easily operate and protect your investment for many years to come.Fuel Efficiency
Volume Capacity
Heats on Average
Minimal Room
Thermal Output
Burn Time
Product Reviews
FAQ's
View AllHow to install a TV or AV equipment above an ethanol fireplace?
This design can be achieved as long as the TV is protected. You have 3 possible solutions:
Solution 1: The TV needs a non-combustible mantel/ledge to act as a heat shield
Solution 2: The TV needs to be recessed in a niche
Solution 3: The TV needs to sit back off the level of the flame

How long does it take to assemble?
There is virtually no assembly. Our Freestanding and Fireplace Grates ranges are designed to be placed into the desired location, secured into position, and operated immediately. Our Fireplace Inserts are designed to slot into place, secured and built around with your preferred finish – again a quick and easy installation – so your builder or interior designer will love you!
The longest part of the setup process is trying to figure out where you want to place it – be sure it complies with our clearance requirements particularly with regard to moving objects like curtains, tree branches and so forth.
Where do I buy ethanol fuel for my ethanol fireplace?
e-NRG is the only bioethanol fuel recommended for your ethanol fireplace. e-NRG has been produced for the lowest odor, most vibrant flame, and longest burn time on the market. e-NRG has undergone rigorous third party testing with all EcoSmart Fire ethanol fireplaces. Use of any other fuel may damage your unit and void your warranty. You can purchase e-NRG ethanol fuel at e-nrg.com for fast and free shipping.
Why use bioethanol?
Bioethanol, a renewable energy, is the cleanest and most efficient fuel on the market, which means there are no emissions and no soot or ash to clean up.
Are EcoSmart Fires easy to install?
EcoSmart Fires are designed to be easily installed and operated. Without the need for a flue or pipe connection, EcoSmart Fires are extremely flexible and can be incorporated at any stage of your interior decorating, renovating or building works. For detailed specifications please contact your local distributor.
How does an ethanol fireplace work?
EcoSmart Fire’s ethanol fireplaces are self-contained, burning bioethanol fuel that is housed within the stainless steel container. A flame regulator controls and stabilizes the flame. With a designated filling area, and easy shut off mechanism, you can ignite the flame and turn it off in a matter of seconds. View this quick demonstration video to help illustrate the process.
How do I fill my ethanol fireplace?
With EcoSmart Fire’s proprietary tools and procedures, filling your ethanol fireplace with e-NRG bioethanol fuel is fast and easy.
Step 1: Remove the bottle nozzle cap and carefully insert into the filling point
Step 2: Push and hold the green button. The nozzle will automatically stop filling once the reservoir is full.
Step 3: Replace the nozzle cap.
You can view a step-by-step filling video.
Are ethanol fireplaces good for the environment?
EcoSmart Fire’s ethanol fireplace burners and fireplace inserts, when paired with our e-NRG bioethanol fuel are clean burning with the only byproduct being heat, steam and carbon dioxide (the same stuff we exhale). Unlike gas fireplace inserts and wood burning fireplace inserts, EcoSmart Fire’s ethanol fireplaces do not produce messy pollutants like soot, smoke, and ash.
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