Heat treatment device

Method (300) for user-related calibration of a heat treatment apparatus (100;

• 220), wherein the heat treatment apparatus (100;
• 220) comprises:
• at least one infrared radiator (110, 112) comprising at least one controllable heat source and arranged to emit infrared radiation generated by means of the heat source to a skin area of a user of the heat treatment apparatus (100;
• 220);
• at least one heat sensor (140, 142) arranged to detect a surface temperature at the skin area of the user;
• and
• a control means (160) configured to control a heat output of the at least one infrared radiator (110, 112) based at least in part on the detected surface temperature at the skin area of the user,
• wherein the method (300) comprises the steps of:
• determining an initial surface temperature at the skin area of the user;
• changing, after determining the initial surface temperature (310) and by use of the control means (160) and the infrared radiator (110, 112), a heat output of the infrared radiator (110, 112) in such a way that in a period of less than 5 seconds a difference of at least 20% in the heat output delivered to the user at the skin area of the user is attained;
• detecting (330), after changing the heat output, a surface temperature at the skin area of the user by means of the heat sensor (140, 142);
• determining (340), by means of the control means (160) and based at least in part on the detected surface temperature, a temperature profile at the skin area of the user, wherein the temperature profile indicates a user's heat dissipating capacity;
• and
• determining (350, 352), by means of the control means (160) and at least in part based on the user's heat dissipating capacity, a control span for a heat output control of the heat treatment apparatus (100;
• 220), and/or storing (350, 354), by means of a memory device (164) of the control means (160), at least one user-related characteristic value that indicates the user's heat disspating capacity.