What type of installation might utilize a flue lining?

A flue lining is specifically designed to enhance the safety and efficiency of exhaust systems in installations that involve the combustion of fuels. When it comes to fuel-burning installations, such as furnaces, boilers, and fireplaces, a flue lining serves two primary purposes: it protects the material of the chimney from heat and corrosion caused by combustion products, and it helps to improve the draft within the chimney.

The outer structure of chimneys can be susceptible to damage from the acidic byproducts of burning fuel, so a flue lining acts as a barrier that keeps these corrosive elements contained. Properly installed flue linings also ensure that any dangerous gases produced during combustion, such as carbon monoxide, are safely expelled from the living space, thereby enhancing safety for occupants.

In contrast, installations such as water heating systems or electric heating systems do not require flue linings, as they either do not involve combustion or do not produce flue gases that need to be vented through a chimney. Solar power installations also do not produce combustion byproducts, thus making flue linings unnecessary. Therefore, the utilization of a flue lining is most relevant to fuel-burning installations.