Choosing the correct liner size for NEW chimneys.

“New masonry chimneys should be constructed with flue liners suitable for the intended application”.

Choosing the correct liner size for NEW chimneys.

This statement from Building Document J is critical; however, a common issue is that many newly built chimneys rely on flexible liners to allow a stove installation, because the typically 225mm clay/concrete system specified has too wide a diameter for the appliance.

Document J clearly states: “Flexible flue liners should be used only to RELINE a chimney and should not be used in a new chimney”.
Schiedel Chimney Systems Isokern and ceramic liners start at 150mm and 160mm diameters respectively, removing the need to install a flexible liner, saving both time and money.

Features

Liners start at 160mm so no need for an additional steel liner
Ideal for both new build or relining existing masonry chimneys, where a rigid steel chimney would require inspection hatches
The most cost-effective way of installing a chimney into a newbuild property
Suitable for gas, oil, solid fuel, biomass and pellet stoves
Suitable for both high and low temperature applications
Certified to EN1857 1 & 2 with the designation T600 N1 G

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Choosing the correct liner size for NEW chimneys.