Bio Flame Water Vapor Fireplace Collection
Bio Flame WT-78-BLACK 78-Inch Smart Water Vapor Fireplace
The Bio Flame WT-78-BLACK 78-Inch Smart Water Vapor Fireplace creates an ultra-realistic 3D flame effect using advanced ultrasonic water vapor technology rather than combustion. Designed for built-in residential and commercial installations, it delivers the visual ambiance of a fireplace without producing heat, smoke, or emissions.
Flame Technology
Ultrasonic 3D Water Vapor
Heat Output
No Heat
Flame Length
1844 mm
Flame Colors
7 Adjustable Colors
Smart Control
Wi-Fi, App, Alexa & Google Home
Water Supply
Manual Fill or Connected Supply
Water Tank
12 Liters
Installation
Built-In
A 78-Inch Smart Water Vapor Fireplace for Large Architectural Features
With an expansive 1844 mm flame length, seven adjustable flame colors, five flame-height levels, adjustable vapor density, built-in Wi-Fi, smartphone app control, remote operation, Amazon Alexa, and Google Home compatibility, the WT-78-BLACK is designed for large-scale feature walls and contemporary spaces where visual impact and smart control are priorities.
Its ultrasonic technology works with water and LED illumination to create a three-dimensional flame effect without burning wood, gas, ethanol, or another combustible fuel.
Because this model does not provide supplemental heat, it serves a different purpose from traditional gas, wood-burning, or heated electric fireplaces.
Important buyer note: Choose the WT-78-BLACK when fireplace ambiance, architectural scale, and smart control are priorities. Do not choose this model when supplemental room heating is required.
Bio Flame WT78 at a Glance
Operating Time
14–18 hours
Specified Cutout
1995 × 180 × 250 mm
Overall Size
2000 × 193 × 168 mm
Is the Bio Flame WT-78-BLACK Right for Your Project?
Best For
- Large living rooms and architectural feature walls
- Modern residential interiors
- Commercial and hospitality environments
- Reception areas and decorative focal points
- Built-in installations requiring a long linear flame presentation
- Smart-home projects using app, remote, Alexa, or Google Home control
- Spaces where fireplace ambiance is wanted without supplemental heat
- Projects that can accommodate the specified cavity, airflow, electrical access, and clearances
Do Not Choose the WT78 If
- You need the fireplace to provide supplemental room heating.
- Your installation cannot accommodate the required cutout dimensions.
- The fireplace niche cannot provide the required bottom air-intake gap.
- The project cannot maintain the manufacturer's required clearances.
- You specifically want a wood-burning, gas, or other combustion-based fireplace.
- The fireplace would be exposed directly to rain, water, or humid outdoor conditions.
Ultra-Realistic 3D Water Vapor Flame Technology
The WT-78-BLACK uses ultrasonic water vapor technology to create its dimensional flame effect.
Instead of burning fuel, the system combines water vapor and LED illumination to produce the visual appearance of fire.
This makes the WT-78-BLACK particularly useful when a project needs a large fireplace focal point but does not require additional room heat.
Important: The WT-78-BLACK is a decorative fireplace and does not provide supplemental heating.
1844 mm Wide Flame Presentation
The WT78 features a manufacturer-listed 1844 mm flame length, creating a substantial visual presentation across its 2000 mm-wide fireplace body.
This extended flame length makes the WT-78-BLACK especially appropriate for larger feature walls, long built-in fireplace surrounds, commercial interiors, and other installations where a smaller decorative flame would appear undersized.
7 Adjustable Flame Colors
Choose from seven flame colors to coordinate the fireplace presentation with the room, interior design, or desired atmosphere.
5 Flame-Height Levels
Five adjustable flame-height levels allow the visual intensity and scale of the flame presentation to be changed.
Adjustable Vapor Density
Vapor density can be increased or decreased using the fireplace and remote controls and returned to its default setting.
Smart Wi-Fi Fireplace Control
The WT-78-BLACK comes equipped with built-in Wi-Fi and multiple control options so the fireplace can be managed locally or as part of a compatible smart-home setup.
Remote Control
The included remote controller provides direct fireplace operation.
Bio Flame Smartphone App
The fireplace supports connected control through The Bio Flame smartphone app.
Alexa & Google Home
Built-in Wi-Fi supports Amazon Alexa and Google Home compatibility.
On-unit fireplace controls are also available for local operation.
Water System & Operating Time
The WT78 has a manufacturer-listed 12 L water tank capacity and a 6.5 L refill volume.
The manufacturer lists an operating time of 14–18 hours. This should be treated as the manufacturer's stated operating range rather than a guaranteed fixed runtime under every operating condition.
| Water Tank Capacity |
12 L |
| Refill Volume |
6.5 L |
| Manufacturer-Listed Operating Time |
14–18 Hours |
| Water Supply |
Manual Fill or Connected Water Supply |
| Water Tank Material |
#304 Stainless Steel |
First-use requirement: The manufacturer instructs that the water tank should be fully filled before first use.
Manual or Connected Water Filling
Manual Filling
The fireplace supports manual filling using its filling system and supplied filling hose.
Connected Water Supply
The manufacturer also provides instructions for connecting the filling hose to a water tap, allowing the fireplace to begin filling automatically until the auto-fill function stops.
WT78 Overall Dimensions
| Overall Width / Length |
2000 mm / 78 in. |
| Depth |
193 mm / 7.6 in. |
| Height |
168 mm / 6.6 in. |
| Flame Length |
1844 mm |
WT78 Manufacturer Cutout Dimensions
Proper installation is essential for correct operation. The manufacturer's manual states that improper installation can void warranty coverage, so cavity dimensions should be confirmed before construction is finalized.
| Cutout Length |
1995 mm |
| Cutout Width |
180 mm |
| Cutout Depth |
250 mm |
Installation planning: Do not determine the fireplace cavity dimensions from the nominal 78-inch product designation alone. Use the manufacturer's specified WT78 cutout dimensions when planning the installation.
Required Fireplace Clearances
When installing the Bio Flame burner in a firebox, the manufacturer specifies the following clearances.
| Front Clearance |
4 in. / 100 mm |
| Rear Clearance |
4 in. / 100 mm |
| Side Clearance |
4 in. / 100 mm |
| Overhead Clearance |
20 in. / 500 mm |
The fireplace is also intended to be placed on a sturdy surface. Use a level to verify that the installation surface is properly level before completing installation.
Bottom Air Intake Is Required
The WT-78-BLACK does not use fuel-burning combustion, but its installation niche should not be completely sealed.
Manufacturer requirement: Leave an open air gap at the bottom of the fireplace niche for air intake.
This requirement should be considered when designing custom cabinetry, fireplace surrounds, media walls, or other built-in architectural applications.
Electrical Planning
Outlet Location
The manufacturer instructs installers to provide an electrical outlet on the right side of the burner cutout.
External Wall Switch
The outlet should be connected to a power source that can be switched on and off from an external wall switch.
Power Before Placement
The power adapter is connected to the electrical socket and then to the burner before the fireplace is lowered into the cavity.
Lift Handles
Use the included lift handles to carefully lower the burner into its prepared cavity.
Level Support
Install the fireplace on a sturdy and properly leveled surface.
Open Bottom Air Gap
Keep the required bottom air-intake opening unobstructed.
Electrical specification note: Specific voltage, amperage, and wattage values were not provided in the supplied product information used for this page. Confirm required electrical specifications before completing electrical work.
Construction & Materials
Fireplace Body
The WT-78-BLACK is specified with a #201 stainless steel body.
Water Tank
The water tank is specified as #304 stainless steel.
The LED system is specified with a lifespan of 60,000+ hours and is designed for low-power operation while supporting the illuminated water-vapor flame effect.
Safety Features
Water-Level Sensor
The supplied WT78 specifications identify a water-level sensor.
Child Lock
The control system includes a child-lock function.
No Heat Output
The water-vapor flame technology does not provide supplemental room heat.
No Smoke-Producing Combustion
The visual flame does not rely on a smoke-producing combustion fire.
No Fuel-Burning Flame
The flame appearance is produced with water vapor and LED illumination rather than burning fireplace fuel.
Safety reminder: Water-vapor operation does not eliminate the manufacturer's installation requirements. Clearance, electrical, airflow, water, and installation instructions should still be followed as specified.
Safety & Electrical Compliance
The Bio Flame states that its Water Vapor Fireplace Collection is tested and certified to meet the Electromagnetic Compatibility Directive (EMC) 2014/30/EU.
-
EN IEC 55014-1:2021 – Emission requirements for household electrical equipment
-
EN IEC 55014-2:2021 – Immunity requirements for safe and stable operation
-
EN IEC 61000-3-2:2019 + A1:2021 – Harmonics and current emission limits
-
EN 61000-3-3:2013 + A1:2019 + A2:2021 + AC:2022 – Voltage fluctuation and flicker compliance
Compliance scope: According to the manufacturer, all models in the Water Vapor Fireplace Collection meet these listed compliance standards. These statements do not replace the installation or operating instructions.
What's Included With the Bio Flame WT78?
| Remote Controller |
1 |
| Filling Hose |
1 |
| Lift Handles |
2 |
| Plug |
1 |
| Installation Manual |
1 |
The included lift handles are used during installation to help carefully lower the burner into its prepared cavity after the electrical connection has been made.
Complete Bio Flame WT-78-BLACK Technical Specifications
| Manufacturer |
The Bio Flame |
| Model / SKU |
WT-78-BLACK |
| Manufacturer Manual Model Reference |
WT78 |
| Collection |
Water Vapor Fireplace Collection |
| Nominal Fireplace Size |
78 Inch |
| Fireplace Type |
Smart Water Vapor Fireplace |
| Installation |
Built-In |
| Primary Application |
Decorative Fireplace |
| Heat Output |
None |
| Flame Technology |
Ultrasonic Water Vapor |
| Flame Appearance |
Ultra-Realistic 3D |
| Flame Length |
1844 mm |
| Flame Colors |
7 Adjustable Colors |
| Flame Height |
5 Adjustable Levels |
| Vapor Density |
Adjustable |
| Remote Control |
Yes |
| Smartphone App Control |
Yes |
| Wi-Fi |
Built In |
| Google Home |
Yes |
| Amazon Alexa |
Yes |
| Water Supply |
Manual Fill or Connected Water Supply |
| Water Tank Capacity |
12 L |
| Refill Volume |
6.5 L |
| Manufacturer-Listed Operating Time |
14–18 Hours |
| Body Material |
#201 Stainless Steel |
| Water Tank Material |
#304 Stainless Steel |
| Water Level Sensor |
Yes |
| Child Lock |
Yes |
| LED Lifespan |
60,000+ Hours |
| Overall Dimensions |
2000 × 193 × 168 mm |
| Approximate Imperial Dimensions |
78 in. W × 7.6 in. D × 6.6 in. H |
| Cutout Dimensions |
1995 × 180 × 250 mm |
| Front Clearance |
4 in. / 100 mm |
| Rear Clearance |
4 in. / 100 mm |
| Side Clearance |
4 in. / 100 mm |
| Overhead Clearance |
20 in. / 500 mm |
| Bottom Niche Air Intake |
Required |
| Intended Environment |
Indoor |
| Manufacturer-Listed Compliance |
EMC 2014/30/EU and listed EN / IEC standards |
Flame Authority Expert Recommendation
Choose the Bio Flame WT-78-BLACK when you want a large-scale built-in fireplace feature with a wide 1844 mm water-vapor flame, customizable flame colors, smart-home controls, and no supplemental heat.
The 78-inch format is best suited to larger residential or commercial feature walls where architectural scale matters.
If your primary objective is to warm the room, choose a fireplace specifically designed to provide heat instead.
For built-in applications, verify the manufacturer's cutout dimensions, clearances, bottom air-intake requirement, electrical access, and water requirements before construction begins.
Official Product Resource
Review the manufacturer's installation and user manual for installation procedures, WT78 cutout dimensions, required clearances, operating instructions, water-filling procedures, remote-control operation, vapor-density adjustment, included accessories, and manufacturer-listed compliance information.
Bio Flame WT-78-BLACK Water Vapor Fireplace FAQs
Does the Bio Flame WT-78-BLACK produce heat?
No. The WT-78-BLACK is a decorative ultrasonic water vapor fireplace designed to create flame ambiance without heat; do not choose this model when supplemental room heating is required.
Does the Bio Flame WT78 require a chimney or vent?
The WT78 does not use fuel-burning combustion, but its built-in niche still requires an open air gap at the bottom for air intake. Do not completely seal the installation cavity.
What cutout size does the Bio Flame WT78 require?
The manufacturer specifies a 1995 × 180 × 250 mm cutout for the WT78. Do not determine the cavity dimensions from the nominal 78-inch designation alone.
How long does the Bio Flame WT78 operate between water refills?
The manufacturer lists 14–18 hours of operating time for the WT78, with a 12 L tank and 6.5 L refill volume. Treat this as the manufacturer's stated operating range rather than a guaranteed fixed runtime.
Can the Bio Flame WT78 connect to a water line?
Yes. The supplied manufacturer documentation describes connecting the filling hose to a water tap for automatic filling, while the fireplace also supports manual filling.
Does the Bio Flame WT-78-BLACK work with Alexa and Google Home?
Yes. The WT-78-BLACK includes built-in Wi-Fi and supports Amazon Alexa, Google Home, The Bio Flame app, and remote-control operation.
Can the Bio Flame WT78 be installed outdoors?
The intended environment is indoor use. Do not expose the fireplace directly to rain, water, or humid outdoor conditions.
Does the Bio Flame WT78 require electricity?
Yes. The manufacturer specifies an electrical outlet on the right side of the burner cutout. Confirm the required voltage, amperage, and wattage before completing electrical work because those values were not supplied in the product information used for this page.
Can the WT78 fireplace niche be completely sealed?
No. The manufacturer requires an open air gap at the bottom of the fireplace niche for air intake.
What comes with the Bio Flame WT78?
The supplied accessories include one remote controller, one filling hose, two lift handles, one plug, and one installation manual.
Before You Order
Confirm Before Purchase
- The WT78 is being selected for decorative ambiance rather than room heating.
- The project can accommodate the 2000 × 193 × 168 mm overall fireplace dimensions.
- The installation can provide the 1995 × 180 × 250 mm manufacturer cutout.
- The required front, rear, side, and overhead clearances can be maintained.
- The niche includes the required open air gap at the bottom for air intake.
- A suitable electrical outlet can be positioned on the right side of the burner cutout.
- The installation surface is sturdy and properly level.
- The project has an appropriate plan for manual filling or a connected water supply.
Do Not Assume
- That the WT78 provides supplemental room heat.
- That the nominal 78-inch designation is the installation cutout size.
- That ventless means no airflow is required.
- That the fireplace can be completely sealed inside cabinetry.
- That a permanent water connection is mandatory.
- That specific electrical voltage, amperage, or wattage can be inferred from the supplied product information.
- That the fireplace is intended for exposed outdoor conditions.
Final installation check: Review the manufacturer's installation instructions before finalizing cabinetry, framing, electrical work, water supply, or other permanent construction.
