I-Electric Air Duct Heaters isebenzisa amandla kagesi njengamandla ukuguqula amandla kagesi abe amandla okushisa kusetshenziswa isici sokushisisa sikagesi. Isici sokushisa se-heater yomoya iyishubhu yokushisa yensimbi engagqwali, eyenziwa ngokufaka izintambo zokushisa zikagesi epayipini lensimbi elingenamthungo, ligcwalise igebe nge-magnesium oxide powder nge-conductivity enhle yokushisa kanye nokufakwa, kanye nokunciphisa ishubhu.