This modern built-in double sided fire is fitted with a filter made of ceramic material with a micromesh structure, through which the flue gas is passed before leaving the fire.  Ceramic filters ensure better combustion resulting in a higher heat output.  The sponge like structure of the filter traps glowing fragments and thus prevents chimney fires.

The Energa Tunnel runs at between 83 - 85% efficiency

Energa 70/55 Tunnel   

Working... Please wait