Flex 104DB Double Sided Fireplace Insert
Provides a focal point for two rooms for a single installation cost.
With two open sides, Flex Double Sided fireplace insert creates the perfect room divider. The see-through design provides unobstructed views of the flickering flame from the front and the back, infusing warmth and ambiance into two adjacent rooms.
The clean lines and 'all flame' configuration of the Flex 104DB 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 2 of our ever-popular XL1200 Burners. With an overall heating capacity of 130m2 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
Application
Indoor or outdoor multi room application. With two open sides, view the flame from the front and the back.
Colours
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.
Clean burning
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
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.
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.
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.
Luxurious finish
Available in a timeless black finish, Flex Fireboxes come with stainless steel burners and black glass charcoal.
Wind screen
Included integrated windscreen sits flush behind frame.
Tested world-wide
Our collection has been thoroughly tested against a number of global standards and is O-TL Listed in accordance with UL 1370 in the USA, certified in accordance with EN16647 in Europe and the UK, and satisfies the ACCC Safety Mandate for Australia.
Technical Specifications
Construction
- Weight 146kg [321lb]
- Model Dimensions mm [in] W 2850mm [112.2in] D 354mm [13.9in] H 807mm [31.8in]
- Viewing Area mm [in] W 2650mm [104.3in] D 352mm [13.9in] H 502mm [19.8in]
- 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 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.
What are some key benefits – compared to other heating options?
When you choose ethanol as your fuel source over gas or wood, you are totally simplifying your installation requirements and costs. There's no flue or chimney required when burning ethanol, which means that you have the ultimate in design flexibility to achieve an open fire in so many more areas of your home - both indoors and out.
How 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

Do ethanol fireplaces smell?
All heating appliances have their own smell be it gas, wood or electric - ethanol fireplaces are no different. e-NRG ethanol fuel is made of fermented plants like sugarcane or corn and is essentially a liquid alcohol. To safely make “de-natured” and unfit for consumption, substances have been added. The burning of these substances may cause a slight smell upon initial lighting and when the flame is extinguished – similar to when you blow out a candle. e-NRG ethanol fuel is the only fuel recommended for your EcoSmart Fire ethanol fireplace. e-NRG ethanol fuel has the lowest odor and longest burn time on the market. The nice thing about using ethanol is that it’s not dry like gas or smokey like wood.
Do EcoSmart Fire ethanol fireplaces give off any fumes or gases?
Bioethanol fuel is made of fermented plants like sugarcane or corn and is essentially a liquid alcohol. To safely make “de-natured” and unfit for consumption, substances have been added. The burning of these substances may cause a slight smell upon initial lighting and when the flame is extinguished – similar to when you blow out a candle. Clean burning and eco-friendly, ethanol fuel releases heat, carbon dioxide (the same stuff we exhale) and steam.
Do I need to service my ethanol fireplace in any way?
Yes, normal maintenance and care is very important! Instructions are included in the Installation, Operating and Maintenance Manual supplied with your EcoSmart Fire product.
Why use an ethanol fireplace?
An ethanol fireplace is an eco-friendly and cost-effective alternative to gas fireplaces and wood burning fireplaces. Enjoy the warmth and aesthetic benefits of a traditional fireplace without the smoke, soot or ash in your home. Unlike gas fireplaces or traditional wood burning fireplaces, EcoSmart Fire’s ethanol fireplace inserts require no venting, no gas line, no electricity - eliminating the need and cost of three sub contractors.
What is bioethanol fuel?
Bioethanol (also known as methylated spirits or simply ethanol) is a form of renewable energy. It’s a clear, colourless liquid that’s commonly made from fermenting the sugar and starch components of plant by-products like sugarcane and grain crops.