No, Radius Designed fires are decorative fires and as such burn Denatured Ethanol which requires no flue. When Denatured Ethanol burns it releases only small amounts of carbon dioxide and water vapour as well as heat.
The fires provide an exquisite addition to any room and give up to 3.2Kw/h, which is the equivalent to 2 electric heaters
There are 48 different types and styles of fires available, from outdoor to indoor free standing units to wall mounted units, some specifically designed for corners.