I-Hermetic High Temperature Heating Circulator ifakwe ithangi lokunweba, futhi ithangi lokunweba kanye nesistimu yokuhambisa i-adiabatic. I-thermal medium emkhunjini ayihlanganyeli ekujikelezeni kwesistimu, kodwa ixhunywe ngomshini kuphela. Kungakhathaliseki ukuthi i-thermal medium ohlelweni lokujikeleza iphezulu noma iphansi, okuphakathi ethangini lokunweba kuhlala kungaphansi kuka-60°.
Lonke uhlelo luyisistimu ye-hermetic. Ngokushisa okuphezulu, ngeke kubangele inkungu yamafutha; ngezinga lokushisa eliphansi, ngeke limunce umswakama emoyeni. Ekusebenzeni kokushisa okuphezulu, ukucindezela kwesistimu ngeke kukhuphuke, futhi ekusebenzeni okuphansi kokushisa, uhlelo luzokwengezwa phakathi kwe-thermal ngokuzenzakalelayo.