In 2009, SYSTEL standardized the use of heat exchangers in livestock buildings. Source of energy savings, SYSTEL heat exchangers bring well-being to animals, thanks to a better atmosphere in the building and benefit from the Best Available Technique (application of European Directive 2010/75/EU of the European Parliament and of the Council of 24 November 2010 on industrial emissions). Best Available Technology is the most efficient and advanced stage of development aimed at reducing emissions and environmental impact.