Chaudiere a pompe a chaleur Chaudiere a pompe a chaleur Source google image: http://www.sogreen.be/uploads/images/references/Pompe%20%C3%A0%20chaleur%20GENERAL%20WATERSTAGE%20V2%20-%20Unit%C3%A9%20int%C3%A9rieure%20-%20SOGREEN%20SPRL.jpg