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High efficiency and low emissions After many years of research, we have taken the next step in the evolution of the heating stove. In contrast to traditional heating stoves, where the heating bag and hotplate are heated directly by the wood combustion, the primary combustion in the down-burning stove only serves to gasify the wood. The wood gases produced in this way are additionally enriched with oxygen via special air ducts below the fireplace. This triggers secondary combustion, which causes the down-burning stove due to a natural downward draft. This gasification technology enables temperatures, emissions and efficiencies that were almost unimaginable until today.