During the early stages of the birds' life, it supplies heat to keep them warm and comfortable, and provides sufficient fresh air to maintain an acceptable air quality in the house.
Nga maḓuvha a u thoma a khuhu, i bvisa mufhiso une wa ita uri i dzule i tshi khou dudela na u dzudzanyea, iya ḓisa muya wo linganelaho uri hu kona uvha na muya wavhuḓi wo no dzhena.