Abstract: A hairdryer comprises a housing, a fan mounted in the housing, driven by a battery powered motor, creating an airflow through the housing. A burner is in the housing in the airflow passage. The burner has fuel supply. An aerofoil-sectional sleeve baffle element surrounds the burner to separate the airflow passage into a first passage in contact with the burner, whereby the airflow in the passage is heated, and a second passage separated from the burner. A coned exit baffle is arranged to mix the airflows exiting hairdryer. An electronic control means pulses a solenoid valve to control fuel supply to the burner and thus the heat out-put therefrom.