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PowerSteam combines heat and speed to produce a more powerful cooking steam. The steam gets
its extra “power” through a unique two-part process: superheating and staged fi lling.
Superheated steam increases cooking energy by 10%.
Steam at sea level is hot. But superheated steam is hotter. Before steam reaches the cooking
compartment, it’s reheated with either fl ue gas or a secondary electric heater. Here the steam
temperature rises from its normal sea level temperature of 212°F to its PowerSteam temperature of
235°F. By raising the steam temperature, the cooking energy is increased by at least 10%. Vulcan is
the fi rst company to use superheated steam for steam cooking. The process is patent pending.
Staged fi lling keeps the boil boiling.
Staged fi lling is the process of slowly applying replenishment water to the boiler/generator after it
has initially fi lled. In Vulcan’s C24GA6 PowerSteam model, for example, it takes three minutes to
fi ll its large-capacity (12-gallon) generator. Once
the generator is fi lled, “slow fi ll valve” meters add
a small amount of replenishment water during
cooking. The benefi t of the slow fi ll valve is that
the boil is not “killed.” During high-volume steam
cooking, PowerSteam delivers a continuous supply
of high-quality steam to the cooking chambers.
1. Staged fi lling occurs here
2. Steam (212°F)
3. Serpentine heat coil
4. Flue gas (900°F). Steam is heated to 235°F by
fl ue gas or secondary heating element
5. Compartment steam (235°F)
How steam becomes PowerSteam.
Gas Convection Floor-Standing Steamer
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