The model-based control of building heating systems for energy saving encounters severe physical, mathematical and calibration difficulties in the numerous attempts that has been published until now. This topic is addressed here via a new model-free control setting, where the need of any mathematical description disappears. Several convincing computer simulations are presented. Comparisons with classic PI controllers and flatness-based predictive control are provided.

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This paper aims to understand the most important factors affecting the building energy performance as well as the role of a high performant construction in reducing the energy consumption. To be able to carry out this study, some new technologies such as a 3D scanner and energy simulation software were used. The results of the study show that a performant construction doesn't necessarily optimize the consumption. Other factors mainly related to the occupation are playing a big role in the final consumption.

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