Twin wall chimney liners are a stainless steel flue system made up of three layers; two layers of stainless steel with a layer of insulation in between. Twin wall flue systems are a popular option for properties where there is no masonry chimney present.

This type of flue system can be installed so that it exits through an exterior wall, or inside the property where it exits through the roof. The safest, most efficient exit point for a twin wall flue system will be established and assessed at the initial site survey and discussed with the customer.

Most commonly these flue systems are installed in matt black or stainless steel; however, other colours are available upon request.