The natural draught wood gasification boiler Eco NZ is designed for wood logs with 1/3m length, maximum economically and sample tested for a guaranted environmental friendly operation. The boiler body is outwardly fully water cooled. Together with the thick walled boiler isulation this ensures least radiation losses, a maxiumum heat transfer and consequently for an efficiency that seemed to be unachievable by a natural draught boiler up to now. In combination with an eleborated airflow a top efficiency of 89% is achieved.
Dimensions: Eco NZ 18, Eco NZ 28