Dryer appliance and method and system for steam generation

A steam generating dryer appliance, the steam generating dryer appliance comprising:

• a drum rotatably mounted within a cabinet, the drum defining a chamber for receipt of articles for drying, the drum comprising a plurality of openings allowing fluid communication into the chamber;
• an air handler configured to urge air into a heater assembly and provide air through a duct, the duct in fluid communication with the plurality of openings at the drum to allow air to flow into the chamber;
• a manifold formed at the duct, the manifold comprising an outlet face at which an outlet opening is formed, wherein the outlet opening provides fluid communication from the heater assembly to the chamber, the manifold forming an interior volume at which a nozzle is positioned to eject liquid water, the manifold comprising a ferrous substrate at an internal side of the manifold at which the nozzle is configured to eject liquid water onto;
• a non-ferrous substrate positioned at an external side of the manifold;
• and
• an induction heating element positioned on the non-ferrous substrate, the non-ferrous substrate positioned between the induction heating element and the ferrous substrate at the manifold.