Ko te Hermetic High Temperature Heating Circulator he mea rite ki te tank roha, a ko te tank roha me te punaha tohanga he adiabatic. Ko te waiariki i roto i te waka kaore e uru ki te tohanga o te punaha, engari he mea hono noa. Ahakoa he tiketike, he iti ranei te reo waiariki i roto i te punaha tohanga, he iti ake i te 60° te reo i roto i te tank roha.
Ko te punaha katoa he punaha hermetic. Ki te pāmahana teitei, e kore e meinga te reira kohu hinu; me te iti o te pāmahana, kaore e mimiti i te makuku i te hau. I roto i te mahi pāmahana teitei, e kore e piki te pehanga o te punaha, a, i te iti o te mahi pāmahana, ka taapirihia te punaha waiariki aunoa.