Bio Flame Firebox Collection
Bio Flame 72-Inch Double-Sided Ventless Ethanol Firebox with 60-Inch Manual Burner
The Bio Flame 72-Inch Double-Sided Firebox is a built-in ventless ethanol fireplace designed to create a wide, see-through flame feature between two adjoining spaces. Its 60-inch manual bioethanol burner produces a real flame without requiring a chimney, flue, gas line, or permanent fuel connection.
Constructed from 304-grade stainless steel with a fully insulated, double-walled firebox, brushed stainless steel internal frame, and 8 mm tempered glass, this model is suited to custom residential and commercial installations. Choose a black or silver exterior finish and either flush-mounted or spacer-mounted glass.
FB-DS-72-60M-Black-Flush — Black / Flush GlassFB-DS-72-60M-Black-Spacer — Black / Spacer GlassFB-DS-72-60M-Silver-Flush — Silver / Flush GlassFB-DS-72-60M-Silver-Spacer — Silver / Spacer Glass
Quick answer: Choose this 72-inch double-sided firebox for a wide see-through architectural fireplace with a 60-inch manual bioethanol burner, no chimney, no gas line, and no electrical requirement. Do not use it as primary heating or in an undersized, combustible, or uncovered outdoor installation.
72 InchesDouble-sided firebox width
60-Inch BurnerManual bioethanol burner
Up to 10 HoursApproximate burn time
40,000 BTUMaximum listed output
Product Overview
What is the Bio Flame 72-Inch Double-Sided Firebox? It is a built-in, see-through bioethanol fireplace containing a 60-inch manual burner. It creates a real flame across a wide viewing area without requiring a chimney, flue, gas connection, or permanent fuel line.
The double-sided configuration allows the flame to be viewed from both sides of the installation. This makes the firebox particularly suitable for room dividers, open-concept interiors, connecting walls, hospitality environments, offices, restaurants, and other architectural feature installations.
Because the included burner is manually operated, the standard configuration does not require electricity. Bioethanol fuel is added directly to the burner, ignited using the supplied lighting tools, and extinguished by closing the burner lid with the lighting rod.
This fireplace is classified as a decorative appliance intended for occasional use. It can provide supplemental warmth, but it must not be selected or operated as a primary heating system.
Quick Specifications
| Brand |
The Bio Flame |
| Collection |
Firebox Collection |
| Firebox Type |
Double-sided built-in ethanol firebox |
| Firebox Width |
72 inches |
| Included Burner |
60-inch manual bioethanol burner |
| Fuel Type |
Bioethanol fuel |
| Ventilation System |
No chimney or flue required; minimum room-size and ventilation requirements still apply |
| Installation |
Custom built-in installation using non-combustible materials |
| Application |
Indoor or protected outdoor installation |
| Firebox Construction |
304-grade stainless steel |
| Internal Frame |
Brushed stainless steel |
| Construction Design |
Fully insulated, double-walled firebox |
| Glass |
8 mm tempered glass |
| Exterior Finish Options |
Black or silver |
| Glass Mounting Options |
Flush or spacer |
| Electrical Requirement |
None for the included manual burner |
| Certifications |
CE approved and certified; tested and certified to EN 16647 |
| Warranty |
3 years, according to the supplied product information |
Is This Firebox Right for Your Project?
Best For
- Custom room-divider and see-through fireplace installations
- Open-concept living rooms, dining areas, and entertainment spaces
- Residential projects without an available chimney or gas line
- Restaurants, offices, hotels, lounges, and commercial interiors
- Projects requiring a wide, contemporary real-flame feature
- Indoor or sheltered outdoor applications
- Buyers who prefer a manually controlled burner without electricity
- Designs requiring black or silver finishes and flush or spacer glass
Not Recommended For
- Primary or whole-home heating
- Small rooms that do not meet the required minimum room size
- Installations made from combustible or heat-sensitive materials
- Uncovered outdoor locations exposed to rain or water
- Projects requiring a wood-burning, natural-gas, or propane fireplace
- Installations where the required tempered-glass windscreens will be removed
- Continuous unattended operation
- Cooking, boiling water, or burning solid materials
Key Features and Benefits
Double-Sided Flame Viewing
The see-through firebox presents the flame from two sides, allowing one installation to visually connect two rooms or define an open-plan space.
Real Flame Without a Chimney
Bioethanol combustion eliminates the need for a conventional chimney, flue, gas line, or permanent fuel connection. Room ventilation requirements must still be followed.
60-Inch Manual Burner
The included manual burner creates a broad flame presentation and operates without electricity. The burner is lit and adjusted using the supplied operating tools.
304 Stainless Steel Construction
The firebox is made from 304-grade stainless steel, providing a durable structure for built-in residential and commercial applications.
Fully Insulated Double-Wall Design
The insulated, double-walled enclosure helps isolate the firebox from the surrounding installation when it is framed according to the manufacturer's instructions.
8 mm Tempered Glass
Tempered-glass windscreens help protect and stabilize the flame while maintaining clear visibility from both sides of the firebox.
Indoor and Protected Outdoor Use
Install the firebox indoors or beneath a protective outdoor overhang. Direct exposure to water or unsheltered weather can damage the appliance and void warranty coverage.
Finish and Glass-Mount Choices
Select a black or silver exterior and choose either flush-mounted glass for an aligned profile or spacer-mounted glass for a slightly offset appearance.
Optional SmartFlame Upgrade
Buyers who want remote and WiFi app control can select a compatible SmartFlame burner configuration instead of the standard manual burner.
Available Product Variants
All listed configurations use the 72-inch double-sided firebox and 60-inch manual burner. Choose the exterior finish and glass-mounting style that match the installation.
Black Finish
- FB-DS-72-60M-Black-Flush
- FB-DS-72-60M-Black-Spacer
Silver Finish
- FB-DS-72-60M-Silver-Flush
- FB-DS-72-60M-Silver-Spacer
Flush vs. Spacer Glass
| Glass Style |
Position |
Design Effect |
Choose This Option When |
| Flush |
The glass is aligned closely with the firebox frame. |
Creates a clean, integrated, streamlined appearance. |
You want the glass and frame to appear visually aligned. |
| Spacer |
The glass is mounted slightly away from the frame. |
Creates a more dimensional, offset-glass appearance. |
You prefer visible separation between the glass and surrounding frame. |
Important: The glass windscreens are required operating components. Do not operate the fireplace without the glass correctly installed.
Included Manual Burner vs. Optional SmartFlame Upgrade
| Feature |
60-Inch Manual Burner |
Optional SmartFlame Burner |
| Included with These SKUs |
Yes |
No; optional upgrade |
| Operation |
Manual ignition and flame control |
Remote and WiFi app control |
| Electricity Required |
No |
Yes |
| Power Preparation |
No electrical outlet required for the burner |
Outlet required on the right side beneath or near the cavity when facing the fireplace |
| Best Choice For |
Simple operation without wiring or smart controls |
Projects requiring powered remote and app-based control |
These listed FB-DS-72-60M variants include the manual burner. Do not assume remote, WiFi, or powered controls are included unless the burner configuration is specifically changed to a SmartFlame model.
Dimensions and Framing Information
| Overall Firebox Dimensions |
72" W × 26.46" H × 15" D |
| Overall Metric Dimensions |
1829 mm W × 672 mm H × 381 mm D |
| Manual Burner Size |
60 inches |
| Manufacturer Framing Opening Guidance |
69.64" W × 14.49" D × 6.5" H |
| Metric Framing Opening Guidance |
1768.8 mm W × 368 mm D × 165 mm H |
| Cavity Lining |
Minimum 3/8-inch-thick cement board |
Verify before construction: Manufacturer dimensions can vary by approximately 2% because of material attributes. Use the actual firebox for final framing, cutout, and finish measurements rather than relying only on nominal dimensions.
Installation Requirements
The 72-inch double-sided firebox is intended for a permanent built-in installation. The appliance must be completely assembled, correctly framed, and securely fixed before fuel is added or the burner is operated.
Use Non-Combustible Materials
Install the firebox only with appropriate non-combustible materials such as stainless steel, concrete, brick, natural stone, or manufacturer-specified board products.
Line the Firebox Cavity
The firebox cavity must be lined with cement board measuring at least 3/8 inch thick. Cement board must separate the firebox from adjacent framing on all sides.
Provide Structural Support
Center the firebox on a level base, align the adjacent studs with the firebox flange, and securely anchor the flange and upper brackets to the supporting framework.
Keep the Firebox Open
Do not add doors, opening covers, or other components that turn the firebox into a sealed hot box. The flame requires a continuing supply of room air.
Install the Glass
Both tempered-glass windscreens must be mounted correctly before operation. Removing or operating without the glass voids the warranty and makes the installation unapproved.
Protect Outdoor Installations
Outdoor installations require a protective overhang. Do not place the firebox where it will be directly exposed to rain, water, or unsheltered weather.
Do not install directly beside heat-sensitive finishes. Wallpaper, laminate, veneer, reactive finishes, and adhesives not designed for high temperatures can discolor, loosen, or become damaged.
Existing fireplace conversions: Any gas connections or pipelines in the installation area must be disconnected and secured by a qualified, licensed professional before installing the ethanol firebox.
Location, Clearance, and Ventilation Guidance
- Install the firebox in a spacious, well-ventilated area.
- Maintain at least 59.1 inches (1500 mm) from combustible materials identified by the manufacturer.
- Keep furniture, curtains, draperies, wallpaper, veneer, paper, and other combustible items away from the appliance.
- Maintain clear access to air openings and areas required for inspection or servicing.
- Keep the appliance out of high-traffic paths and away from movable materials affected by drafts.
- Meet the 100 m² minimum room-size requirement for the 60-inch manual burner configuration.
- When installing beneath a recessed television, maintain at least 14 inches (35.5 cm) from the top of the firebox to the bottom of the television.
- Keep children and pets safely away while the burner is operating or remains hot.
Does ventless mean the room does not need ventilation? No. The fireplace does not require a chimney or flue, but the room must still provide sufficient ventilation and meet the manufacturer's minimum room-size requirement.
Fuel Requirements
The manufacturer recommends The Bio Flame Bioethanol Fuel for this burner. The installation manual also identifies e-NRG as an alternative fuel suitable for use with Bio Flame burners.
- Store bioethanol in its original container.
- Keep stored fuel away from heat, flame, and other ignition sources.
- Follow all local rules for fuel storage, handling, decanting, and use.
- Refill only after the burner is completely empty and fully cooled.
- Clean spilled fuel and allow the area to dry completely before ignition.
Never use gasoline. Do not substitute wood, charcoal, paper, or another solid or liquid fuel. Using an unapproved fuel creates a serious fire or explosion hazard and can damage the appliance.
Important Safety Information
Before Lighting
- Confirm that the firebox, burner, and glass are fully assembled.
- Inspect the burner and surrounding area for spilled or residual fuel.
- Remove combustible materials from the surrounding area.
- Confirm that the room meets minimum size and ventilation requirements.
- Use only the supplied lighting rod and lighter.
During and After Operation
- Never leave the operating flame unattended.
- Do not move or relocate the appliance while it is burning.
- Do not touch the burner lid during operation or cooling.
- Allow up to 60 minutes for manual-burner components to cool.
- Use the lighting rod to operate the hot burner lid.
Do not operate the appliance in a room where oxygen tanks are being used or where flammable vapors are present. Do not modify the firebox, cut its sheet-metal components, obstruct the burner opening, or place decorative media directly over the burner mouth.
Keep the burner lid closed when the fireplace is not being used. This helps prevent debris from entering and contaminating the burner chamber.
What Is Included?
Primary Components
- 72-inch double-sided firebox
- 60-inch manual bioethanol burner
- 8 mm tempered-glass windscreens
- Brushed stainless steel internal frame
Operating Accessories
- Lighting rod
- Lighter
- Fuel funnel
Bioethanol fuel is not identified as an included accessory in the supplied specification sheet. Confirm fuel availability separately before the planned installation or first use.
Complete Technical Specifications
| Product Name |
Bio Flame 72-Inch Double-Sided Ventless Ethanol Firebox with 60-Inch Manual Burner |
| Product Collection |
Firebox Collection |
| Firebox Configuration |
Double-sided / see-through |
| Installation Type |
Custom built-in |
| Application |
Indoor and protected outdoor |
| Exterior Finish Options |
Black or silver |
| Glass Options |
Flush-mounted or spacer-mounted |
| Firebox Material |
304-grade stainless steel |
| Internal Frame |
Brushed stainless steel |
| Firebox Construction |
Fully insulated and double-walled |
| Glass Material |
8 mm tempered glass |
| Burner Type |
Manual ethanol burner |
| Burner Size |
60 inches |
| Fuel Type |
Bioethanol fuel |
| Fuel Capacity |
18 liters |
| Approximate Fuel Consumption |
0.56 liters per hour |
| Approximate Burn Time |
Up to approximately 10 hours |
| Maximum Thermal Output |
Approximately 40,000 BTU |
| Average Indoor Heating Area |
Approximately 100–120 m² |
| Minimum Room Size |
100 m² |
| Overall Dimensions |
72" W × 26.46" H × 15" D |
| Overall Metric Dimensions |
1829 mm W × 672 mm H × 381 mm D |
| Suggested Framing Opening |
69.64" W × 14.49" D × 6.5" H |
| Cavity-Lining Requirement |
Minimum 3/8-inch cement board |
| Chimney or Flue Required |
No |
| Gas Line Required |
No |
| Permanent Fuel Connection Required |
No |
| Electricity Required |
No for the included manual burner |
| Certification |
CE certified and EN 16647 certified |
| Warranty |
3 years, according to the supplied product information |
Manuals and Product Resources
Review the official specification sheet and complete Installation & User Manual before framing, finishing, fueling, or operating the fireplace.
72-Inch Double-Sided Firebox Specification SheetReview the overall dimensions, burner performance, construction materials, included accessories, and manual-versus-SmartFlame configuration data. Firebox Installation & User ManualReview required framing methods, cement-board lining, ventilation, clearances, glass installation, approved fuels, operating procedures, and safety warnings.
Expert Recommendation
Choose this firebox when the project calls for a wide, double-sided real-flame feature and conventional venting or gas infrastructure is unavailable or undesirable. It is especially well suited to custom room dividers, open-concept interiors, hospitality spaces, and large residential rooms that meet the 100 m² minimum room-size requirement.
The included manual burner is the better fit when simple operation and freedom from electrical wiring are priorities. Select the SmartFlame upgrade only when remote and WiFi app controls justify providing a nearby electrical connection.
Do not select this model solely as a heating appliance. Its primary purpose is decorative flame ambiance with supplemental heat, and successful installation depends on adequate room volume, ventilation, non-combustible construction, and strict adherence to the manufacturer manual.
Frequently Asked Questions
Does the Bio Flame 72-Inch Double-Sided Firebox require a chimney?
No. It does not require a chimney or flue, but the room must still meet the manufacturer's ventilation and 100 m² minimum room-size requirements.
Does this ethanol firebox require a gas line?
No. Do not connect the manual burner to natural gas or propane; it is designed only for approved liquid bioethanol fuel.
Does the included manual burner require electricity?
No. The included 60-inch manual burner operates without electricity; an electrical connection is required only when upgrading to a powered SmartFlame burner.
Is a SmartFlame burner included with these product variants?
No. The FB-DS-72-60M variants include a manual burner; choose a SmartFlame configuration separately when remote and WiFi app control are required.
Can the 72-inch double-sided firebox be used as a primary heat source?
No. It is classified as a decorative or supplemental heating appliance and must not be relied upon for primary room or whole-home heating.
What is the minimum room size for the 60-inch manual burner?
The required minimum room size is 100 m². Do not install or operate this configuration in a smaller enclosed space.
Can this double-sided ethanol firebox be installed outdoors?
Yes, but only beneath a protective overhang. Do not install it in an uncovered location exposed directly to rain, water, or unsheltered weather.
What materials are required around the firebox cavity?
Use non-combustible materials and line the cavity with at least 3/8-inch cement board. Do not install the firebox directly against combustible or heat-sensitive finishes.
Can I operate the fireplace without the tempered-glass windscreens?
No. The glass must remain correctly installed during operation; removing it voids the warranty and makes the appliance unapproved for use with the included burner.
What is the difference between flush and spacer glass?
Flush glass aligns closely with the frame, while spacer glass is mounted slightly away from it. Choose based on the desired finished appearance, not a change in burner output.
What fuel should be used in the 60-inch manual burner?
Use The Bio Flame Bioethanol Fuel or the manual-listed e-NRG alternative. Never use gasoline, wood, charcoal, paper, or another unapproved fuel.
Can I refill the burner while it is hot?
No. Refill only after the fuel chamber is completely empty and the burner has fully cooled; hot refueling creates a serious fire and explosion risk.
How long does the 60-inch manual burner operate?
The manufacturer lists an approximate burn time of up to 10 hours with an 18-liter capacity. Actual performance varies with installation conditions and fuel quality.
How much heat does the manual burner produce?
Maximum output is approximately 40,000 BTU. Do not use this figure to size the appliance as a primary heating system.
Can this firebox be installed beneath a television?
Yes, when the television is recessed and at least 14 inches above the top of the firebox. Do not reduce this manufacturer-stated clearance.
Can the firebox be enclosed with doors or a cover?
No. The firebox must remain open for airflow and must not be converted into a sealed oven-like enclosure.
Can decorative stones be placed over the burner opening?
No. Decorative media must not cover the burner mouth or interfere with the flame because obstruction creates an unsafe operating condition.
Can this firebox replace an existing gas fireplace?
It can be used in a suitable custom conversion only after existing gas connections are disconnected and secured by a qualified, licensed professional.
Should framing be built only from the published dimensions?
No. Dimensions can vary by approximately 2%, so use the actual firebox for final framing, cutout, and finish measurements.
Can the fireplace be left unattended while burning?
No. Never leave an active flame unattended, and keep children and pets safely away while the burner is operating or cooling.
Plan the Installation Before Ordering
Confirm the available room volume, overall dimensions, non-combustible framing, outdoor weather protection, finish selection, and flush or spacer glass preference before placing the order. Review both manufacturer documents with the installer before construction begins.
Select the manual-burner configuration when electricity-free operation is preferred. Select a SmartFlame configuration only when powered remote and WiFi controls are required.
