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The debate about the notion of energy transition questions the lack of consideration by public authorities of the discrepancy between household heating practices and the rules put forward by these same authorities. This paper describes the main results of recent surveys and proposes to highlight them by examining the evolution of comfort standards in housing and the way they are produced. Mobilizing the social transaction theory enabled us to reveal the difficulty for housing policies to develop shared positions. We showed that household practices, which result in house heating temperatures actually higher than the 19 degrees norm, form a real critique of the energy transition theory. In being unable to have the norm accepted in household behavior despite the urgency of controlling the demand for energy, the energy transition theory proves to be unrealistic in overlooking the mechanisms of social practice.