FIELD: liquid atomisation or spraying devices.
SUBSTANCE: present invention relates to heating unit (10) of an aerosol generating device for heating an aerosol-forming substrate. Heating assembly comprises chemical heating device (200), configured to generate primary heat by exothermic chemical reaction and supplying primary heat to aerosol-forming substrate for substrate heating. Heating assembly further comprises electric heating device (100), made with possibility of generation by means of electricity and supply of secondary heat to aerosol forming substrate for substrate heating. Present invention further relates to an aerosol-generating device comprising such a heating assembly and a method of generating an aerosol by heating the substrate.
EFFECT: invention provides controlled and energy-efficient heating of aerosol-forming substrate.
13 cl, 8 dwg
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