Disclosed is a method and device for rapid heating of a substance. One embodiment includes a substance including a drug to be vaporized for inhalation therapy. A sealed fuel cell containing a combustible filament is placed in a heat exchange relationship with the substance. An igniter is operatively associated with the combustible element. The substance may be vaporized inside of a housing to allow the vaporized drug to aerosolize and be inhaled by a user.