The use of wood for home heating is as old as mankind itself. Of all renewable energies, wood can easily be stored away.
This was an innovative Technology originally designed for pellets; it was the first step that led to the making of pellet stoves.
The technology of air tight combustion circuit for stoves came to the fore thanks to the partnership of COGRA and HARMAN. The technical Approval (DTA No. 14/13-1937 Cogra / Harman) acquired in 2005 helped validate this major technological breakthrough.