Onyx Avanti 85 Balanced Flue Gas Fire

For those who want a showpiece gas fire that delivers both drama and performance, the Onyx Avanti 85 Balanced Flue Gas Fire is hard to beat. As the largest model in the Avanti Balanced Flue collection, it offers a commanding widescreen display, exceptional heating capability, and one of the highest efficiency ratings of any gas fire in its class.

Contemporary Centrepiece Design

With its expansive 85cm landscape format, the Avanti 85 is designed to dominate the room, making it the natural choice for open-plan living areas and large modern interiors. Whether recessed as a clean, frameless feature fire, paired with the minimal Edge+ frame for a subtle finish, or highlighted with the bold Expression frame, this fire adapts effortlessly to different tastes and architectural styles. Its broad proportions and sharp lines ensure it becomes a centrepiece in any setting.

Flames with Depth and Character

At the heart of the Avanti 85 is a sophisticated burner system that produces flames with movement, texture, and realism. A glowing ember-effect bed supports individually hand-painted split oak logs, arranged to allow the flames to wrap naturally around them. Behind this, the firebox is lined with EchoFlame™ Black Glass, which reflects and amplifies the flame picture, enhancing depth and brightness to create a captivating three-dimensional effect. Supplied with non-reflective glass as standard, the view remains clear and uninterrupted.

Power and Efficiency in One Package

The Avanti 85 isn’t just visually stunning – it also offers outstanding performance. Delivering up to 6.1kW of heat, it has the strength to comfortably warm even larger spaces. With an efficiency rating of 91.9%, it is one of the most economical landscape gas fires available, ensuring superb comfort without excessive running costs.

Effortless Operation

Every Avanti 85 is supplied with a fully sequential thermostatic remote control, giving you complete mastery over ignition, flame height, and heat settings at the touch of a button. The remote also lets you maintain your chosen room temperature automatically, so your home remains consistently comfortable without constant adjustment.

Balanced Flue Versatility

As a balanced flue fire, the Avanti 85 is ideal for homes without an existing chimney. Its design draws combustion air from outside and vents gases safely outdoors. Flexible flue options mean it can be tailored to different properties:

• The Up & Out kit allows horizontal exit through an external wall.
  
  
• The Vertical kit provides vertical exit through a roof - perfect for single-storey extensions or bungalows.
  
  
• The optional Chimney Renovation Kit enables the fire to be fitted into an existing masonry chimney.

Designed for Installers, Built for Homeowners

The Avanti 85 has been carefully engineered to simplify installation and servicing. A compact control system integrates components for faster setup and easier maintenance. Ergonomic side handles make it simple to remove the glass panel when required, while the direct frame attachment system speeds up fitting and minimises plastering work.

Manufactured by the Stovax Heating Group, a leader in premium heating design for over 40 years, the Avanti 85 embodies craftsmanship and reliability. Constructed from high-quality materials and supplied with a 10 year extended warranty (upon registration), it is a fire built to provide years of warmth, comfort, and luxury.

Highlights of the Onyx Avanti 85 Balanced Flue Gas Fire:

Largest in the Avanti Balanced Flue range – 85cm widescreen design

Flexible installation: frameless, Edge+, or Expression frame

Hand-painted split oak log fuel bed with glowing embers

EchoFlame™ Black Glass lining for extra flame depth and realism

Maximum heat output: 6.1kW – ideal for large or open-plan spaces

Industry-leading efficiency of 91.9%

Supplied with non-reflective glass as standard

Easy-to-use thermostatic remote control included

Flueing options: Up & Out kit, Vertical kit, or Chimney Renovation Kit

Compact control system simplifies installation and servicing

Ergonomic glass handles for safe removal during maintenance

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