Onyx is a luxury British stove and fire brand and part of the Stovax Heating Group. Drawing on 40 years of British design and engineering experience, the company develops wood-burning, multi-fuel, gas and electric heating products. Its range includes Avanti, Avita, Fusion, Mirage and Orbit electric fires; Avanti and Eclipse gas fires; Liv 3 gas stoves; and Athos and Olympus wood-burning and multi-fuel stoves.

Onyx says its products are designed and engineered in state-of-the-art research and development laboratories using industry-leading technology. The brand combines contemporary innovation with considered design, with products intended to bring heating and ambience into the home. Customers can explore product information, brochures and videos, register products, and find support and warranty details through Onyx.

Its retailer network spans hundreds of specialist retailers across the United Kingdom and Republic of Ireland, where selected products are available through showroom sales. Purchasing through an authorised specialist retailer and registering a product provides access to an extended warranty. Onyx also features customer installations and product news on its website