Source google image: http://www.domifa33.fr/wp-content/uploads/2018/07/chauffe-eau-schema-branchement-electrique-forum-electricite.jpg
Chaudiere electrique schema
Source google image: http://www.domifa33.fr/wp-content/uploads/2018/07/chauffe-eau-schema-branchement-electrique-forum-electricite.jpg