Pompe a chaleur blog Pompe a chaleur blog Source google image: https://2.bp.blogspot.com/-jyu4oMQtVb4/Uf5-cq929oI/AAAAAAAAB3E/Kxzr6nTX-2k/s1600/schema-hydraulique-de-principe-pompe-a-chaleur-ballon-tampon-elyotherm.jpg