Schwarz, T. 2026. From Heat Demand to Engagement: Mapping Socio-Technical Conditions for Urban Energy Planning: An Exploratory, Multi-Scale Statistical Assessment of Heating System Age and Heat Demand Across Socio-Cultural Milieus. International Sustainable Energy Conference - Proceedings. 2, (May 2026). DOI:https://doi.org/10.52825/isec.v2i.3225.