The Viessmann Group

www.kwt.ch Cooling technology - Heat pumps - Geothermal probe drilling

www.kob.cc Wood heating systems up to 1250 kW

www.mawera.at Wood combustion systems up to 13000 kW

www.ess-landsberg.de Combined heat and power stations and automation

www.bioferm.de Biogas technology

www.schmack-biogas.com Biogas technology

www.carbotech.info Gas purification

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