Ichi ndichidule chachidule cha chipinda chowonetsera chatsopano.Zinthu zazikuluzikulu zomwe zikuwonetsedwa zimaphatikizirapo kusinthana kwa kutentha kwa mpweya kupita ku mpweya, zochepetsera mpweya, makina opangira kutentha kwa HRV, ma ventilators a ERV, mayunitsi ophera tizilombo toyambitsa matenda, mayunitsi oyendetsa mpweya, etc.
Werengani zambiri