I-screw heater heater iyisigaba esingaphansi samahitha acwiliswayo, ngokuvamile adinga isikhala esincane ukuze sisebenze.Umgomo wama-screw plug heater ufana nezifudumezi zokucwilisa ezine-flanged.I-heater icwiliswa odongeni lwempahla, njengemikhumbi, amathangi amanzi noma iziqukathi zamakhemikhali.