Asihlinzeki nje kuphela ngemikhiqizo egcina izinga eliphezulu lokushisa eliphezulu yokonga amandla, kodwa futhi sihlinzeka nge-thermal insulation, ukwahlukanisa, ukubonisana ngobunjiniyela bokuvalwa, ukuklama kanye nezinsizakalo zokwakha emkhakheni wokushisa okuphezulu. Ubuchwepheshe bethu obuyindida kanye nedizayini ethuthukisiwe yonga amandla futhi ikudalele inani.