Onyx Liv 3 Gas Stove

The Onyx Liv 3 Gas Stove combines distinctive cylindrical styling with realistic log effects and a panoramic view of the flames. Its sweeping curves, tall proportions and three-sided glass create an elegant focal point for contemporary living rooms and open-plan interiors.

The Liv 3 is available with conventional-flue and balanced-flue options, giving you flexibility when planning your fireplace. The conventional-flue version suits a suitable chimney, while the balanced-flue model can be installed in homes without a traditional chimney, subject to the manufacturer’s requirements.

Onyx Liv 3 Gas Stove: Stunning 180° Flame View

The Liv 3 features front and side glass panels that provide an approximately 180-degree view of the flames. Its realistic log-effect fuel bed and tall, gently rolling flames create the appearance of a traditional fire in a modern freestanding design.

Behind the flames, the reflective EchoFlame™ Black Glass lining provides additional depth and definition. The result is a striking display that can be appreciated from several positions around the room.

Conventional Flue and Balanced Flue Options

The Onyx Liv 3 is offered in two flue configurations to suit different properties.

• Conventional flue (CF): Designed for a suitable existing chimney or flue system. An optional linerless flue kit may be suitable for certain masonry chimney installations, subject to the manufacturer’s instructions.
• Balanced flue (BF): Designed for properties where a conventional chimney is unavailable. The balanced-flue system vents directly outdoors through an approved wall or roof arrangement.

The correct model depends on your property, gas supply, flue route and installation requirements. A Gas Safe registered engineer must assess the installation and confirm the appropriate appliance and flue configuration.

Efficient Gas Heating and Remote Control

The Liv 3 delivers a heat output ranging from 2.1 kW to 4.5 kW. Efficiency varies by flue model: the conventional-flue version is rated up to 78%, while the balanced-flue version achieves up to 94.3%.

The supplied programmable thermostatic remote control allows you to operate ignition, adjust the flame, regulate the heat output and switch the appliance off. It can also maintain your selected room temperature.

Key Features and Specifications

• Manufacturer: Onyx.
• Model: Liv 3 Gas Stove.
• Appliance type: Freestanding gas stove.
• Fuel options: Natural gas or LPG, subject to model availability.
• Heat output: 2.1–4.5 kW.
• Conventional-flue efficiency: Up to 78%.
• Balanced-flue efficiency: Up to 94.3%.
• Energy efficiency class: Conventional flue D; balanced flue A.
• Flue options: Conventional flue or balanced flue.
• Flame view: Approximately 180° through front and side glass.
• Fire interior: EchoFlame™ Black Glass lining.
• Fuel effect: Realistic logs.
• Controls: Programmable thermostatic remote control.
• Optional accessory: Linerless flue kit for suitable conventional-flue installations.

Performance figures depend on the selected model and fuel configuration. Confirm the current technical documentation, dimensions, gas requirements, clearances and flue arrangements before ordering.

Installation and Suitability

Choosing the right Liv 3 configuration requires consideration of the property’s chimney or flue arrangement, available wall or roof route, gas supply and room layout.

All installation work must follow the manufacturer’s instructions and relevant Building Regulations. Gas work must be carried out by a suitably qualified Gas Safe registered engineer.

At Embers Heating Studio, we can discuss the available Liv 3 options and help you understand what needs to be assessed before installation.

Onyx Liv 3 Manufacturer’s Warranty

The Onyx Liv 3 Gas Stove is eligible for an extended 10-year manufacturer warranty when purchased through an authorised stockist within Onyx’s Expert Retailer Network and registered with Onyx within one month of installation.

Under the manufacturer’s current terms, the warranty provides parts and labour cover for the first two years, followed by parts-only cover from year two to year ten. Annual servicing by a Gas Safe registered engineer is required, and service records, commissioning documents and proof of purchase may be needed when making a claim.

The extended warranty is subject to the manufacturer’s eligibility rules, exclusions and other conditions. Please check the current Onyx warranty terms and complete registration after installation.

Visit Embers Heating Studio in Derby

Visit Embers Heating Studio, your independent fireplace and stove showroom in Allenton, Derby, next to Spider Bridge on Osmaston Road.

We can help you compare conventional-flue and balanced-flue options, discuss the Liv 3’s flame display and heating performance, and consider the requirements of your property.

We offer supply-only purchases and a full installation service, subject to your property’s requirements.

Embers Heating Studio Ltd

802 Osmaston Road, Spider Island, Allenton, Derby, DE24 9AA

Telephone: 01332 242299

Explore more gas stoves at Embers Heating Studio.

For full model information and technical details, visit the official Onyx Liv 3 Gas Stoves page.

For warranty registration and full conditions, read the official Onyx gas-stove warranty terms.