Musiyano pakati pegonhi remoto wegirazi uye gonhi rehuni nesimbi moto nderokuti rakaiswa nenzvimbo huru yegirazi rinodzivirira moto. Mushure mekupisa kwakanyanya, jelly inoonekera senge inodzivirira moto inonamira layer iri pakati pegirazi inokurumidza kuomesa kuti iite opaque fire insulation panel. Iyo yepamusoro-yemhando yepamusoro girazi regirazi gonhi rinogona kuramba richigara kweanopfuura maminetsi makumi mapfumbamwe pasi pesimba remurazvo unosvika 90 ℃, iyo inohwinawo nguva yakakosha yekupunyuka kwevanhu uye rubatsiro rwenjodzi.