Stellar's Sirius II model line has a dual-direction convection fan that increases steam velocity and steam distribution efficiency by pulling hot air past the cooking pans, then forcing it against the cooking chamber walls to be reheated.

Sirius II's cast aluminum cooking compartment acts as a heat sink, providing superior temperature retention and recovery while reducing energy consumption. And, Sirius II's boilerless design means there's no boiler to break down, delime or replace.