Kuverenga kwehuwandu hwemhepo inopfuura nemhepo yekufemesa system .
F - Air duct muchinjikwa-chikamu chimiro. Rectangular kana kuti yakatenderera.
D - Duct dhayamita.
X - Kufara kwe duct yakaita makona matatu.
Y - Kureba kwemugero wakaita makona matatu.
E - Mhepo kumhanya, pasekondi.
Purogiramu inokwanisa.
Kuverenga vhoriyamu mhepo kupfuura mhepo duct.