Flex 42DB 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 42DB means the entire viewing area is dedicated to the eye-catching flame, creating a harmonious blend of traditional style and contemporary design.
The XL700 burner delivers a captivating linear flame. With a 7L capacity, this elongated ethanol burner has the power to heat up to 50m2, making it ideal for residential and smaller commercial/hospitality spaces.
Efficiency is a key feature of this burner, delivering up to 12 hours of heat generating flame from a single refill.
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 61.40kg [135lb]
- Model Dimensions mm [in] W 1265mm [49.8in] D 354mm [13.9in] H 807mm [31.8in]
- Viewing Area mm [in] W 1065mm [41.9in] 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 clean my EcoSmart Fire ethanol burner?
Cleaning of the ethanol burner should be done only after you have used 50 litres of fuel or as soon as you notice a black residue forming around or on the burner. Before starting, make sure the burner is off, empty of ethanol, and at room temperature. Spray a multi-purpose cleaner on the surface of the burner and wipe with cloth, making sure to wipe in the direction of the grain. If material has fallen into the ethanol fireplace burner use a vacuum cleaner to remove debris through the burner opening. If your burner smells unusually strong after extensive use, remove the empty and room temperature burner from its surround and wash in hot, soapy water. Rinse thoroughly under running water and wait until the burner is completely dry before placing it back into its surround and reusing. View this video of the simple cleaning process here: https://youtu.be/VqHg9mXOc0U
Note: Stainless steel will rust or corrode over time if contamination or debris is not cleaned or removed immediately. When not in use, we recommend that you protect your ethanol fireplace from water damage or corrosion with a protective cover and the regular use of the burner lid included with your model.
How much does it cost to maintain an ethanol fireplace?
EcoSmart Fire’s ethanol fireplaces require little maintenance. It is important to keep the lid closed when not in use to keep debris out of the ethanol burner that can cause corrosion and damages. The 304 stainless steel tank is built to last a lifetime if proper cleaning procedures are done when needed.
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.
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.
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.
What is an ethanol fireplace insert?
EcoSmart Fire’s fireplace inserts are ready to install heating appliances that include single or multiple ethanol burners within a designed zero-clearance enclosure. Choose from over 219 single sided, double sided, bay, peninsula, island, and bench fireplace styles at multiple lengths. 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. Simply secure the ethanol fireplace insert in the framework, finish the surround, and it’s ready for use. EcoSmart Fire’s ethanol fireplace inserts can be installed virtually anywhere - in walls, cabinets, small spaces, high rise buildings, commercial spaces, indoors and outdoors.
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

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.