Source google image: http://www.leguideduchauffage.com/photogallery/chauffe-eau-solaire/schema-chauffe-eau-solaire.JPG
Ballon chauffe eau solaire
Source google image: http://www.leguideduchauffage.com/photogallery/chauffe-eau-solaire/schema-chauffe-eau-solaire.JPG