anki chimney systems

Why Choose Pumice ?

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.

Pumice has natural properties

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.


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.