Pompe a chaleur co2 Pompe a chaleur co2 Source google image: http://www.brunn.fr/sites/default/files/styles/galleryformatter_slide/public/field/gallery/CE%20Thermodynamique%20avec%20pompe%20%C3%A0%20chaleur%20au%20CO2%20TFlow%20Aktiv%20de%20ALDES.jpg?itok=MYTePKfu