Onyx Fusion 150RW Electric Fire
- A 1500mm panoramic electric fire that installs one, two or three-sided - from the same firebox
- Authentic Flame Technology with 16 flame settings over a crystalline, Chromalight-lit ember bed
- Two log sets: the Luxury Logscape real woodland set, or the Birch log-effect with integrated lighting
- Up to 2kW of thermostatic heat, 9 MyFlame presets, app and remote control, Ecodesign compliant
The Onyx Fusion 150RW Electric Fire is Onyx's award-winning panoramic electric fire: gold winner in Product Design at the 2025 London Design Awards. One firebox installs three ways - single-sided inset against a wall, as a two-sided corner, or as a three-sided panoramic centrepiece - and at 26.3cm deep, the Fusion's SLIMdepth suits media walls and shallower builds where bulkier fires will not fit. Onyx suggests pairing it with TVs from 50 to 65 inches.
Authentic Flame Technology drives sixteen flame settings - from a flickering fire with sparks and wisps of smoke to an elegant swaying flame and vivid contemporary effects - over a crystalline textured base lit from below by Chromalight Plus LEDs. Two log sets are offered: the Luxury Logscape, real woodland logs crafted from sustainably sourced British hardwood, or the Birch log-effect set with integrated log lighting; both glow from within in eight colours plus spectrum mode. A programmable 2kW thermostatic heater warms the room when needed - with a countdown timer, Open Window Detection and Adaptive Start for efficiency - and the flames run with or without heat, all year. Control comes via the thermostatic Eco handset or the app on iOS and Android, with nine MyFlame presets, up to four daily heating schedules and separately programmable flame schedules.
- Free delivery over £500
- 4.8 Google Reviews Score
- Expert Installation Available
Onyx Fusion Installation Options
The Onyx Fusion Electric Fires can be installed as Front Facing, Corner or as Three Sided.
Technical Specifications
Every dimension, every material choice, every specification has been considered. Built to exacting standards for those who demand excellence.
What Makes The Onyx Fusion Electric Fires Exceptional
Authentic Flame Technology
Sixteen flame settings run from flickering sparks and wisps of smoke to an elegant swaying flame, over a crystalline ember bed lit from below in eight colours plus spectrum mode, with five brightness levels.
Chromalight Plus Flames
The same Fusion installs single-sided as an inset, as a left or right corner, or as a three-sided panoramic - decided at installation. A 26.3cm SLIMdepth fits media walls other fires cannot.
Real Logs, Real Glow
Two log sets are offered: the Luxury Logscape, real woodland logs crafted from sustainably sourced British hardwood, or the Birch log-effect with integrated lighting. Both glow from within in eight colours.
Heat That Thinks
A programmable 2kW thermostatic heater holds your set temperature, with Adaptive Start, Open Window Detection, a countdown timer and daily scheduling. Flame-only mode keeps the Fusion in use every season, Ecodesign compliant, with zero emissions.
Onyx Fusion Electric Fire
A panoramic electric fire from Onyx, gold winner in Product Design at the 2025 London Design Awards. Authentic Flame Technology brings sixteen flame settings to a crystalline ember bed, over log sets from real sustainably sourced British hardwood to a lit birch effect. The same firebox installs one, two or three-sided, at a 26.3cm SLIMdepth that fits media walls other fires cannot. Up to 2kW of thermostatic heat, full app and remote control, and flames with or without heat - in every season.
Watch The Onyx Fusion 150RW Electric Fire
Authentic Flame Technology
Sixteen flame settings run from flickering sparks and wisps of smoke to an elegant swaying flame and vivid contemporary effects - a crystal-clear display that runs with or without heat.
One Firebox, Three Ways
The same Fusion installs as a single-sided inset fire, a two-sided corner or a three-sided panoramic - decided on the day, not at the factory.
Real Oak, Hand-Painted Glow
Choose the Luxury Logscape - real woodland logs crafted from sustainably sourced British hardwood - or the Birch log-effect set, each glowing from within in eight colours.
Why Choose Marlow
Expert Consultation
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Certified professionals ensure safe, compliant installation every time.
Lifetime Support
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Frequently Asked Questions
What is the Onyx Fusion 150RW Electric Fire?
The Onyx Fusion 150RW Electric Fire is a 1500mm-wide panoramic electric fire with Authentic Flame Technology - sixteen flame settings over a crystalline ember bed - a choice of two log sets and up to 2kW of thermostatic heat. It is designed and engineered in Britain and installs one, two or three-sided from the same firebox.
What size is the Onyx Fusion 150RW Electric Fire?
The Fusion 150RW has a viewing area of 1500mm wide by 425mm high and an overall depth of 263mm - Onyx's SLIMdepth, slimmer than many electric fires and suited to media walls where space is limited. Onyx suggests pairing it with TVs from 50 to 65 inches.
How much heat does the Onyx Fusion 150RW produce?
The Fusion 150RW produces up to 2kW of programmable thermostatic heat, holding your set temperature as efficiently as possible. A countdown timer, Open Window Detection and Adaptive Start keep consumption in check, and the flames run with no heat at all, so the fire works in every season.
Can the Onyx Fusion 150RW be installed as a corner or three-sided fire?
Yes. The Fusion 150RW installs as a single-sided inset fire, a two-sided corner fire (left or right) or a three-sided panoramic fire - all from the same firebox, with the glass configured at installation.
What log options are available for the Onyx Fusion 150RW?
Two log sets are offered. The Luxury Logscape set is crafted from sustainably sourced British hardwood. The Birch log-effect set pairs classic styling with integrated log lighting. Both glow from within in eight colours plus spectrum mode.
How do you control the Onyx Fusion 150RW Electric Fire?
The Fusion 150RW is controlled by the thermostatic Eco handset remote or by the app on iOS and Android. Sixteen flame effects, brightness, fuel-bed and log lighting, heat, timers and schedules are all adjustable, with nine MyFlame presets - three of which can be customised and saved.
Does the Onyx Fusion 150RW need a chimney or flue?
No. The Fusion 150RW is a fully electric fire - no chimney, flue or gas supply is required. It simply needs a standard electrical connection, which makes it suitable for media walls, flats and extensions alike.
Can you use the Onyx Fusion 150RW flames without the heat?
Yes. The Fusion 150RW has a flame-only mode, so the Authentic Flame effects, ember bed and log lighting can run with the heater off - the look of a fire on a summer evening, with no warmth added.
What is Authentic Flame Technology?
Authentic Flame Technology is Onyx's flame system for the Fusion: sixteen flame settings rendered on a crystal-clear display, from a flickering fire with sparks and wisps of smoke through an elegant, gas-like swaying flame to vivid contemporary effects - each adjustable across five brightness levels.
Who installs the Onyx Fusion 150RW Electric Fire?
The Fusion needs no flue, so installation is far simpler than a gas or wood fire - typically a competent electrician or media-wall installer. Our team installs within our local radius and supplies UK-wide with advice for your installer. Call 01628 290142 to talk it through.
See the Onyx Fusion Electric Fire in Action
An excellent choice for Media Wall Installations
Onyx Fusion 150RW Electric Fire
Detailed Onyx Fusion 150RW Electric Fire Collection Video
Why Choose the Onyx Fusion 150RW Electric Fire
The Fusion is Onyx's award-winning electric fire: Authentic Flame Technology with sixteen flame settings over a crystalline ember bed, a choice of real woodland or birch-effect logs, and a 26.3cm SLIMdepth that slides into media walls where deeper fires will not. A 2kW thermostatic heater, nine MyFlame presets and full app and remote control complete the fire.
- AUTHENTIC FLAME TECHNOLOGY - 16 FLAME SETTINGS
- ONE, TWO OR THREE-SIDED INSTALLATION
- 26.3CM SLIMDEPTH FOR MEDIA WALLS
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