1. Directive 2012/27/EU of the European Parliament and of the Council of 25 October 2012 on energy efficiency 2030 Climate Target Plan (European Commission, 2020).
2. Directive 2002/91/EC of the European Parliament and of the Council 16 December 2002 on the energy performance of buildings (European Commission, 2003).
3. Co-heating test: A state-of-the-art
4. IEA EBC Annex 58, Reliable Building Energy Performance Characterisation Based on Full Scale Dynamic Measurements (KU Leuven, 2016).
5. IEA EBC Annex 71, Building Energy Performance Assessment Based on Optimized In-Situ Measurements (KU Leuven, 2021).