In Australia, where wood heaters are a popular choice for home heating, the flue system plays a crucial role in ensuring safety, efficiency, and compliance with regulations. This article delves into the various aspects of FIREWOOD HEATER FLUES, with a focus on stainless steel options, to provide a comprehensive understanding for homeowners and professionals alike.​ A flue is a duct or pipe that channels smoke and combustion gases from a wood heater to the outside atmosphere. Proper flue installation is essential for:​ Single-skin flues are made of a single layer of metal, typically stainless steel. They are suitable for installations where the flue does not pass through combustible materials.​