Castle Farm, Marshfield, Chippenham, Wiltshire, SN14 8HU
01225 891469

Pumice Flue

This pumice liner system comes in a range of 15 diameters from 150mm to 1000mm internal diameter. The Pumice flue liners are for masonry chimneys where the linings are surrounded by 100mm of brick, block or stone.

The linings are suitable for all fuels but not suitable for condensing appliances –including pellet or biomass.

Pumice liners are ideal for new build as well as relining existing masonry chimneys.


  • Minimum Heat Loss,  Maximum Efficiency
  • Improved Performance For Your Appliance
  • Ideal For Timber Framed & Thatched Properties
  • Better Chimney Draught
  • Less Soot & Tar Build-up
  • Chimney Fire Safe
  • For new build or to add a new chimney to an existing property we recommend Single Module or Block Liners
    For Chimney relining we recommend Round Liners.

Pumice is a natural material extracted from the heart of the earth to be at the heart of the chimney flue.

Anki Chimneys are made from volcanic pumice sourced from the Hekla Volcano in Iceland

The pumice is taken in ships to Denmark where it is formed into chimney products that are capable of performing in the extreme conditions created by a chimney fire and the hardest frosts that we can experience.

  • Resistant to temperature change

Pumice does not expand or contract with temperature change. This reduces the possibility of cracking and structural damage that can occur with other products.

  • High Insulation Properties

Pumice is a natural insulator, able to maintain the temperature of flue gases when other products have allowed the temperature to fall below the dew point.
The high insulation properties also mean that heat is not transmitted to the outside.

  • Lightweight

Pumice is strong yet lightweight, allowing one person to lift and build the chimney units.

Due to the nature of the pumice material, Anki chimneys have a life expectancy in excess of 60 years. They are also fully covered by a 15 year guarantee subject to normal usage.

please note: all installations must be fitted by a qualified Hetas engineer or with building regulation approval.