Defrost drain heater heater ndi mphira wa silikoni, itha kugwiritsidwa ntchito ngati firiji, mufiriji, chipinda chozizira, chosungirako, etc. Kutalika kwa chotenthetsera kumakhala ndi 0.5M, 1M, 2M, 3M, 4M, etc.Voltahe ndi 12V-230V , mphamvu imatha kupangidwa 10-50W pa mita.