Chaudiere gaz vitodens 100, source : http://www.bonnel-chauffage.fr/images/photos-viessmann/vitodens-100w-viessmann-100-w-chaudiere-murale-condensation-compacte-59-62-installation.jpg
Chaudiere gaz vitodens 100, source : http://www.bonnel-chauffage.fr/images/photos-viessmann/vitodens-100w-viessmann-100-w-chaudiere-murale-condensation-compacte-59-62-installation.jpg