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This work deals with the experimental study of the changing temperatures of the various components of a flat plate solar collector for producing hot air. To do this, it has been the design of this solar collector equipped with thermocouples at the glazing, of the air gap existing within the solar collector and at the absorber. The temperature of the ambient air and that of the output of the solar collector is also measured. Several comparisons between the different temperatures were performed in order to, subsequently, analyzed the changes that can occur in these temperatures. The series of measures were taken during the day of Thursday, April 14, 2016. Starting from a ambient air temperature around 20 ° C (temperature of the air inlet), the temperature reached 120 ° C at the absorber and 95 ° C at the outlet of the solar collector. [ABSTRACT FROM AUTHOR]