Knowledge Graphs (KGs) can be used to provide a unified, homogeneous view of heterogeneous data, which then can be queried and analyzed. In this paper, we explore the use of KGs to analyze the Thermal Comfort (TC) of users in specific environments (e.g. classrooms, hotel rooms). This implies the integration of several data sources that provide environmental variables (i.e. temperature, humidity), but also users' physiological variables (i.e. temperature). Thus, this paper proposes a method to integrate and analyse environmental and physiological data through KGs in the context of TC.