Types of chimney liner

Types of chimney liner.

Many people are becoming more aware of the benefits of lining their chimney when installing a solid fuel appliance, but which flexible liner is right for you?

Gas and oil liner

Gas and oil liner has a lower tolerance to heat than solid fuel liner, It is often made from a single wall from either aluminium or 316 grade stainless steel. This grade of flexible liner is not suitable for using with a solid fuel appliance.

316 Grade twin skin

This grade of stainless steel liner is classified as a class 1 liner and is suitable for gas, oil and multifuel, including wood burning appliances with maximum flue temperatures of around 500deg C. It is manufactured using two layers of steel folded together to create a smooth inside wall to prevent friction and a tough outer wall for protection.

316/904 Grade twin skin

As with the 316 grade this liner is suitable for solid fuel appliances and is the most economical for burning smokeless fuels. The inner layer is made from a 904 grade stainless steel for protection against the fumes created by the combustion of  smokeless fuel. While the outer layer is made from a 316 grade shell for protection.

904 Grade twin skin

Manufactured in the same way as 316 grade but with a 904 grade steel inside and out, This liner is the best you can buy and is recommended when burning mostly smokeless fuels, for heavy usage and if you are slumbering the stove overnight.

Flexible liners usually come with a guarantee from the manufacturer for 10, 15 and 25 years depending on the grade of steel, however it is always a good idea to read the small print as many impose conditions relating to insulating the chimney or only using only the manufacturers components on the installation .

If you live in the Holyhead, Conwy, Denbighshire, Flintshire, Cheshire, Wrexham or Wirral areas and are considering installing a stove call North Wales Stoves on 01745 822344 or email us