Rooftop mmatumba mpweya woziziritsa utenga kutsogolera makampani R410A kompresa ndi ntchito khola ntchito, phukusi phukusi angagwiritsidwe ntchito m'madera osiyanasiyana, monga mayendedwe njanji, mafakitale mafakitale, etc. Holtop padenga mmatumba phukusi mpweya ndi kusankha kwanu kwabwino kwa malo aliwonse kumene pakufunika Phokoso lochepa la m'nyumba komanso mtengo wotsika woyika.